Sex. Created by a small group of kids, but I saw some guy say it on a forum, so I figure it's time to represent. Extra boinks can be added for effect as in "sheboinka-boinka."
Noun: I heard that kid was doin' the sheboinka with some skank-ass bitch.
Verb: I want to sheboink your mom.
Verb: I want to sheboink your mom.
by Trippie Longstocking July 6, 2006