A taco served with shit in it.
Rony - Dude, I think that mook just served me a gullons
Hank - Dude, fuckin' gross!
the act of defecating in a pillow case and using it to slap a friend in the face, under the false pretence that it will strengthen the friendship.
Jordo: hey man are we friends now
Steve: dude you just pulled a gullons on me, i hope you die!