A punk band who has had about 16 in it's history, including the "late" Hewhocannotbenamed. There most famous album, at least where I come from is 1990's "Blood Guts & Pussy". They started in the early 80's, and have a new album coming out called "The Dwarves Come Clean."
Their music is rather shocking, (though not as much as, say, Cannibal Corpse,) and they indulge in various satanic and sexual debauchery.