Definitions by cv3

thunk

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.

He: *THUNK* (penis slaps across a girl's face)
She: OW!!

thunk by cv3 August 28, 2006

the act of slapping a girl's forhead repeatedly with your erect penis.

example:
HER: i want a facial, and then some chinese penis torture
ME: sure! :)