by Ralph Planet November 14, 2019
Meaning that you have an erection at the present time or talking about one in the past. The 'Shtonk' being the erection an the 'on' meaning you have it, so a Shtonk off would of course mean you dont have one.
by DaveMorgan April 21, 2007
When you have sex with a girl once or multiple times with the ultimate goal of never seeing her again.
by ArtofAwesome September 26, 2011