by snaidni May 13, 2010
The sound produced by an erect penis slapping against an object, whether it be the man's own body or a hot girl's face.
by cv3 August 28, 2006
I thunk it before you.
by bread infection January 02, 2006
by Renegade Norman July 11, 2014
Derived from the sound food makes when falling from a row in a vending machine, "thunk" is a general term for food you buy when you have the munchies, but your funds are limited to small change only.
Imagine the sound made by a Honeybun when you buy it from a machine after smoking pot all night.
Dude, you're eating thunk.
Dude, let's go get some thunk.
by Devlan July 27, 2006
by Joel27 September 09, 2004