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
by Ralph Planet November 14, 2019
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