This sexual move occurs while having sexual intercourse with your partner from behind (doggy style) in a bathroom in front of a toilet. Right before your partner orgasm's, whether male or female, you shove their head into the bowl of the toilet.
Guy1: You know how i got with that chick last night, the busty brunette.
Guy2: Yeah what about her?
Guy1: I totally Dunk Tanked her last night!
Guy2: YOU DIRTY DOG, YOU!!!
Guy2: Yeah what about her?
Guy1: I totally Dunk Tanked her last night!
Guy2: YOU DIRTY DOG, YOU!!!
by Slefmruts August 16, 2009
Dude, Corinne was so drunk last night she pissed herself in the elevator on the way up to her apartment. It smelled like I was in a dunk tank.
by Hitler-esque_Natron January 02, 2012
While having sex, your partner punches you in the face right before orgasm. i.e. Hit the button, then you get wet. See also "Buffy"
by swordinthesound April 13, 2009