Guy 1: *Sees extremely hot girl* *Insta-gasm*
Guy 2: *Eats bacon* *Insta-gasm*
Guy 3: *Hot drunk girl falls on top of him* *Insta-gasm*
Guy 2: *Eats bacon* *Insta-gasm*
Guy 3: *Hot drunk girl falls on top of him* *Insta-gasm*
by HCTKPR July 18, 2011
Giving an instant orgasm by quickly jabbing one's sides near the kidney on one or both sides at once which causes involuntary movement and sometimes unnecessary noises...
Boy 1: I'm going to give that kid an insta-gasm guys...
Boy 2: (After he was given the insta-gasm) (yelling) IT'S SO INSTANT!
Boy 2: (After he was given the insta-gasm) (yelling) IT'S SO INSTANT!
by shadow1337 May 23, 2009