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Funny Things to Write in a Birthday Card

A funny birthday card is the easiest way to make someone actually laugh on their day — as long as you land the joke. These messages cover every kind of funny, from quick one-liners to getting-older jokes to lines cheeky enough for a sibling or close friend.

Pick one that suits them (and how much they can take), then tap it to open our free card maker with the joke filled in. Add a design and print a folded card in minutes.

Funny one-liners

Getting older jokes

Sweet & funny

Sarcastic & cheeky

Funny for a close friend or sibling

  • Happy birthday to my favorite problem. Wouldn't cause chaos with anyone else.Write this inside →
  • Happy birthday to the person who knows all my secrets and is legally obligated to keep them.
  • Another year of you being annoyingly great. Cut it out. Happy birthday, weirdo.Write this inside →
  • You're basically me but with worse decisions. Somehow still proud of you.Write this inside →
  • I'd take a bullet for you, but only a Nerf one. Happy birthday, you menace.Write this inside →
  • Congrats on being born! Still the single best thing you've ever done for me.Write this inside →

Tips for writing a message

  • Match the joke to how well you know them — save the savage lines for people who'll laugh.
  • Short usually lands harder; a one-liner beats a rambling setup.
  • Punch up, not down — tease age or habits, never appearance.
  • Follow a joke with one warm line if you want to soften the landing.
  • Read it out loud once; if it makes you smile, it'll work.

Ready to make the card?

Pick a design, drop in your message, and print a foldable card at home in minutes — free, no account.

Frequently asked questions

What's a funny thing to write in a birthday card?
A short, good-natured joke usually wins — something about surviving another year, getting older, or their favorite quirks. This page has 32 grouped by style, from one-liners to cheeky.
What's a funny birthday message that isn't mean?
Try “Studies show people who have the most birthdays live the longest. Keep it up!” The Sweet & Funny section pairs a joke with a genuinely kind line.
How do I use one of these messages?
Tap “Write this inside” on any short message to open our free card maker with the joke filled in. Pick a design, then print and fold at home.