Top Definition
An online version of fist pounding, usually done after something awesomely cool happens.
A: Hey man, guess what, I got a date with Lisa.
B: Whoaaa, that's sick!*thump*
by warren/joanie November 21, 2007

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.

×