The act of performing analingus on another person. eatin butt can apply to
heterosexual or homosexual analingus; it can be guy on guy, guy on girl, girl on guy, girl on girl. In gay sex, eatin butt is more extreme than rimming; rimming involves merely
licking around the anus with no insertion of the tongue, while eatin butt involves full
penetration of the anus with tongue. Usually eatin butt is done to lube and loosen up an asshole prior to fucking it.