4. Wishing a happy birthday to the cousin who still thinks "adulting" is a mythical creature. May your day be as carefree and fun as the times we spent avoiding responsibilities together. 5.

Spread some birthday cheer with genuinely funny jokes you can share with friends & family.

Stuck on what to write in a birthday card? Find heartfelt and funny sentiments to celebrate friends, family, co-workers and everyone else in your life.

Birthday wishes for brothers or brothers-in-law should make them feel celebrated on their special day. Find heartwarming, funny, and simple messages here.

We've got all the funny and thoughtful birthday wishes for nephews you need, whether your nephew is your best pal or someone you're celebrating from afar.