1 definition by dsw1023

laughing my ass butt off. This is derived from Supernatural's own Castiel as he yells "Hey ass butt!" and throws a bottle of holy oil setting Michael on fire and sending him away for awhile.
Jen: So Castiel yells 'Hey assbutt' and sets Michael on fire. lmao
Jared: I think you mean lmabo...duh
by dsw1023 August 15, 2010
Get the lmabo mug.