Something men say when a girl is so hot, even a priest would smash that ass.
From a meme of hulk in christian clothes, hand over heart, saying the phrase.
sees a hot girl
Mark: Dude....
Joe: I know man, I see it.
Mark: Lawd knows Id smash
ID Know
(I Don't Know)
Fellow 1: "Why hello there, how is your day going?
Fellow 2: "Good, why?
Fellow 1: "ID Know?"
Fellow 2: *stabs Fellow 1 with flimsy knife made of butter*
Fellow 1: "ID Know you would do that! Ow..."