“Been Caught Buttering” achieves greatness not by expanding upon or pushing forward the Death Metal genre, but by distilling it. Here is death metal embodied: buzz saw guitars threaten to slice through limb, drums are hit with the precision and care of a killer clubbing his victim, the bass throbs underneath like the pulse of some monstrous beast, solos rip through the din without warning, depraved tales are recited in a maniacal bark, and everything is sloshed in terrible, fetid grime. As far as ruthless, muck-encrusted death, its only rival is “Mental Funeral” by Autopsy.