The act of not fully wiping after dropping a duece and then commencing to fart in a persons general direction. sending tiny feces shrapnel everywhere.
Holy shit! He just left off a huge butt grenade.
look out, a butt grenade!
an explosion in your asshole :)
dude, i need a new toilet, i had another butt grenade go off!!
5👍 3👎
What happens to your dookie chute after consuming White Castle Slider's.
Kim ate White Castle and began to drop BUTT GRENADE'S shortly thereafter.