A perjorative term for someone so ugly, so exceedingly unattractive. that he or she is as "ugly as a butt" (a misnomer, since many buttocks are beautiful indeed). A popular teen-age slang term since the 80s, "butt-ugly" most probably began as military slang c. World War II. Probably because enlisted men found nothing attractive about another enlisted man's hairy, sweaty, very possibly pimpled butt!
by Victor Felix August 21, 2005
As ugly as buttocks. Mostly like large, hairy and deformed buttocks.
(Not Jennifer Lopez's buttocks)
(Not Jennifer Lopez's buttocks)
That bitch is butt ugly
by Funky Big Geek Freak Booty Daddy March 11, 2003
by Bill Peters November 10, 2006
by DubbinMau5 September 09, 2010