Having a best friend is like having your own personal cheerleader, secret-keeper, and laugh partner all rolled into one. And what better way to celebrate that special bond than with some colorful idioms? Idioms are fun phrases that don’t always mean what they say but help us express emotions, experiences, and connections in a creative and memorable way.
In this post, you’ll find 44 idioms that perfectly describe friendship — from sticking together through thick and thin to being each other’s ride or die. You’ll learn what each phrase means, how to use it in a sentence, and discover easier ways to say the same thing. These expressions add sparkle to everyday conversations and deepen how we talk about our closest connections.
So whether you’re writing a birthday card for your bestie or just want to sound a little more clever when talking about your BFF, these idioms will have your back. Let’s dive in and explore the language of true friendship.
Idioms for Best Friend
1. Thick as thieves
Meaning: Extremely close or inseparable.
In a Sentence: Emma and I are thick as thieves—we tell each other everything.
Other Ways to Say: Super close, Besties forever
2. Joined at the hip
Meaning: Always together, never apart.
In a Sentence: Since middle school, we’ve been joined at the hip.
Other Ways to Say: Always together, Inseparable
3. Through thick and thin
Meaning: Supporting each other no matter what.
In a Sentence: She stood by me through thick and thin.
Other Ways to Say: Always there, No matter what
4. Like two peas in a pod
Meaning: Very similar and always together.
In a Sentence: We’re like two peas in a pod—we even finish each other’s sentences!
Other Ways to Say: So alike, Perfect pair
5. Shoulder to cry on
Meaning: Someone who listens and offers comfort.
In a Sentence: When I was sad, she gave me a shoulder to cry on.
Other Ways to Say: Someone to lean on, Comforting friend
6. Birds of a feather
Meaning: People who are alike often stick together.
In a Sentence: We’re birds of a feather when it comes to our love for books.
Other Ways to Say: Similar souls, Same vibe
7. Ride or die
Meaning: A loyal friend who’s always by your side.
In a Sentence: She’s my ride or die—we’ve been through everything together.
Other Ways to Say: Loyal buddy, True friend
8. Have someone’s back
Meaning: To support or protect someone.
In a Sentence: No matter what, I’ll always have your back.
Other Ways to Say: Support you, Stand by you
9. Bury the hatchet
Meaning: To make peace and become friends again.
In a Sentence: After our fight, we decided to bury the hatchet and move on.
Other Ways to Say: Make peace, Start fresh
10. Hit it off
Meaning: To become friends immediately.
In a Sentence: We hit it off on the first day of school.
Other Ways to Say: Instantly clicked, Got along fast
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11. Get along like a house on fire
Meaning: To get along extremely well.
In a Sentence: From day one, we got along like a house on fire.
Other Ways to Say: Instantly bonded, Best buds fast
12. Be on the same wavelength
Meaning: To understand each other well.
In a Sentence: We’re always on the same wavelength when it comes to planning.
Other Ways to Say: Think alike, Totally in sync
13. Two peas in a pod
Meaning: Extremely similar or close.
In a Sentence: Everyone says we’re two peas in a pod.
Other Ways to Say: Just alike, Perfect match
14. Old buddy, old pal
Meaning: A familiar and long-time friend.
In a Sentence: I ran into my old buddy, old pal from high school.
Other Ways to Say: Longtime friend, Familiar face
15. Be thick with someone
Meaning: To be very close friends.
In a Sentence: He’s been thick with Josh since second grade.
Other Ways to Say: Super close, Tight-knit
16. In someone’s corner
Meaning: To support someone no matter what.
In a Sentence: She’s always in my corner, even when I mess up.
Other Ways to Say: Supportive, Always there for me
17. Like family
Meaning: As close as actual relatives.
In a Sentence: My best friend is like family to me.
Other Ways to Say: Feels like a sibling, Closest connection
18. Have a heart-to-heart
Meaning: To have a deeply honest conversation.
In a Sentence: We had a heart-to-heart about everything going on.
Other Ways to Say: Deep talk, Honest conversation
19. Friend till the end
Meaning: A friend who sticks with you for life.
In a Sentence: No matter what happens, she’s my friend till the end.
Other Ways to Say: Forever friend, Lifelong buddy
20. Cut from the same cloth
Meaning: Very similar in character or thinking.
In a Sentence: We’re cut from the same cloth—we even have the same taste in music.
Other Ways to Say: So similar, Same kind of person
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21. Be like chalk and cheese
Meaning: Very different from one another.
In a Sentence: We’re best friends, even though we’re like chalk and cheese.
Other Ways to Say: Total opposites, Very different
22. Know someone inside out
Meaning: To know everything about someone.
In a Sentence: I know her inside out—she’s been my best friend for years.
Other Ways to Say: Know everything, Understand completely
23. Through and through
Meaning: Completely and genuinely something.
In a Sentence: He’s a loyal friend through and through.
Other Ways to Say: 100% genuine, True friend
24. Be all ears
Meaning: Ready to listen carefully.
In a Sentence: Whenever I need to vent, she’s all ears.
Other Ways to Say: Ready to listen, Super attentive
25. Be there with bells on
Meaning: Eager to show up and support.
In a Sentence: She was there with bells on when I needed help.
Other Ways to Say: Showed up excited, Fully supportive
26. Speak the same language
Meaning: To understand each other easily.
In a Sentence: We speak the same language, even without words.
Other Ways to Say: Understand each other, Think alike
27. Go way back
Meaning: To have known each other a long time.
In a Sentence: We go way back—all the way to kindergarten.
Other Ways to Say: Long-time friends, Known each other forever
28. Stick together
Meaning: Stay close and support one another.
In a Sentence: No matter what happens, we stick together.
Other Ways to Say: Stay united, Always have each other
29. Keep in touch
Meaning: To maintain communication.
In a Sentence: Even after moving away, we still keep in touch.
Other Ways to Say: Stay connected, Check in often
30. Be thick as glue
Meaning: Very close and always together.
In a Sentence: They’re thick as glue—you never see one without the other.
Other Ways to Say: Super close, Always together
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31. A friend in need is a friend indeed
Meaning: A true friend helps you when you need it most.
In a Sentence: She stayed up all night helping me study—a friend in need is a friend indeed.
Other Ways to Say: True friend, Loyal companion
32. Like an open book
Meaning: Easy to understand or read emotionally.
In a Sentence: With her, I’m like an open book—no secrets at all.
Other Ways to Say: Totally honest, Easy to read
33. Have a soft spot for someone
Meaning: To feel affection or tenderness toward someone.
In a Sentence: I’ve always had a soft spot for my best friend’s kindness.
Other Ways to Say: Care deeply, Feel warmly
34. Get someone’s drift
Meaning: To understand what someone is trying to say.
In a Sentence: I don’t even need the full story—I get your drift.
Other Ways to Say: Understand, Catch the idea
35. Bend over backward
Meaning: To go out of your way to help.
In a Sentence: She bent over backward to make my birthday special.
Other Ways to Say: Try hard, Do everything possible
36. Stick your neck out
Meaning: To take a risk for someone.
In a Sentence: He stuck his neck out to defend me during the debate.
Other Ways to Say: Take a chance, Risk something for a friend
37. Break the ice
Meaning: To start a conversation or make things less awkward.
In a Sentence: My best friend always knows how to break the ice.
Other Ways to Say: Ease the tension, Start talking
38. On the same page
Meaning: Agreeing or thinking alike.
In a Sentence: We’re totally on the same page about the trip plans.
Other Ways to Say: Agree, Think alike
39. Heart of gold
Meaning: Someone who is very kind and generous.
In a Sentence: She has a heart of gold—always putting others first.
Other Ways to Say: Very kind, Sweet-natured
40. Be someone’s rock
Meaning: To be a reliable source of support.
In a Sentence: He’s my rock—I can count on him for anything.
Other Ways to Say: Reliable friend, Always there
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41. Be like a second home
Meaning: To feel completely comfortable and safe with someone.
In a Sentence: Her place feels like a second home to me.
Other Ways to Say: Super comfortable, Feel at home
42. Hit the jackpot
Meaning: To be very lucky or fortunate.
In a Sentence: I really hit the jackpot when I met my best friend.
Other Ways to Say: Got lucky, Found a gem
43. Talk for hours
Meaning: To enjoy long conversations without getting bored.
In a Sentence: We can talk for hours and never run out of things to say.
Other Ways to Say: Nonstop chats, Endless conversations
44. Laugh your head off
Meaning: To laugh really hard, especially with a friend.
In a Sentence: We laughed our heads off watching that silly movie.
Other Ways to Say: Crack up, Laugh a lot
Practice Exercise
Match the idioms with the right meanings:
- Thick as thieves
- Bury the hatchet
- Be someone’s rock
- Two peas in a pod
- Laugh your head off
- Know someone inside out
- Friend in need is a friend indeed
- Go way back
- Heart of gold
- Talk for hours
Meanings (A–J):
A. Laugh really hard together
B. Have been friends for a long time
C. Be extremely close
D. Understand someone deeply
E. A kind and caring friend
F. Always there to support
G. Long deep conversations
H. Rebuild a broken friendship
I. True friendship shows in tough times
J. Very alike and close
Answers:
1–C, 2–H, 3–F, 4–J, 5–A, 6–D, 7–I, 8–B, 9–E, 10–G
Conclusion
Idioms are a creative way to describe the amazing bond between best friends. They bring warmth, humor, and personality to how we talk about the people closest to us. By learning these phrases, you’ll not only sound more expressive but also be able to connect better with others.
So next time you’re writing a message to your BFF, giving a speech, or just chatting, throw in one of these idioms to show how much that friendship means. Because best friends? They’re not just in your life—they’re part of your story.
