Make your best friend laugh out loud on her birthday with this hilarious "Good Friends Are Like The Best Knickers" birthday card. Featuring a funny underwear illustration and cheeky friendship humour, this card celebrates the friend who always has your back, supports you through life's ups and downs, and keeps you smiling no matter what. Perfect for best friends, work besties, sisters from another mister, and anyone who appreciates a rude and funny birthday joke.