a gigantic ass explosion (which see). Not just explosive but NUCLEAR. Chars the ass releasing it, resulting in painful dumps for days following. Usually the result of alcohol and some type of spicy food. The fumes blind anyone within the confines of the restroom.
"Dude, i had beer and taco bell last night....shit...this morning i had a nuclear ass detonation"
by Guiness Meister July 23, 2006