When your rear feels the need to send a kiss into the world in the form of a fart to which can be loud, silent, wet, deadly, toxic, etc. Thus, the butt smooch.
Hey do you smell that? I'm getting light headed.
Yeah, sorry I butt smooched again.
Dude, go get that checked out.
Yeah, sorry I butt smooched again.
Dude, go get that checked out.
by Tough lips June 03, 2016
Get the Butt smooch mug.David: Hey bro, do you smell that?
John: Yeah.
(Both boys look to the side.)
David: UGH! She is crusty.
John: Yeah.
(Both boys look to the side.)
David: UGH! She is crusty.
by Tough lips June 03, 2016
Get the Crusty mug.