Someone who has extreme experience at mutilating a man or woman's anus. They ravage and make the rim incredibley sore/red. Has been known to render butthole useless for extended periods of time, and, in extreme cases, induced comas. However, many flock towards these people as when a buttholedestroyer enters your anus the ripping and tearing of the skin around your anus brings forth extreme pleasure - instant climax.
Dingle: I'm going to ravage dat ass.
Venus: Hell yeah, baby. Bend me over the kitchen bench.
David: Damn! Dingle is such a buttholedestroyer! Threesome?
1. The act of being a "fucking asshole" and douche, but overall just being that one person nobody really likes and wound prefer to avoid due to the immaturity and "dickness" of the person.
1. David was expressing his Buttholness to the class by shouting out smart remarks.
2. Josh's Buttholness behavior was obviously having a negative toll on his life.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi