Butt cheek buddies are good friends who even though some shit sometimes comes between them, they always come back together.
Friend 1: You know, sometimes you really have your head up your ass.
Friend 2: Yeah, I know. You want another beer, butt cheek buddy?
Friend 2: Yeah, I know. You want another beer, butt cheek buddy?
by Woodmont Willie June 29, 2010