Top Definition
bumping into someone from the behind using your chest with your arms and legs spread out.
Kid 1: Why did you get written up today?

Kid 2: Oh, I fatbird'd a kid and he fell.

Kid 1: damnn

-------------------------------------------------

Kid 1: I saw him fatbirding someone.

Kid 2: LOL who was the kid?
by Nightmare34434 January 13, 2012

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×