It is a derogative term used to offend some one who is of homosexual nature or perceived to be of homosexual nature because of something they have just done.
Charles's Father: "Charles, are you looking at gay porn again?"
Charles: "No it was a pop-up"
Charles's Father: "yes you are you filthy Butt Cowboy!"
Charles: "No it was a pop-up"
Charles's Father: "yes you are you filthy Butt Cowboy!"
by St. John Underwood February 04, 2008
Mr. Blonde: Eddie, if I was a butt cowboy, I wouldn't even throw you to the posse.
Nice Guy Eddie: Of course not, you'd keep me for yourself, you sick bastard. Four years of fuckin' punks up the ass you'd appreciate a piece of prime rib when you see one.
Nice Guy Eddie: Of course not, you'd keep me for yourself, you sick bastard. Four years of fuckin' punks up the ass you'd appreciate a piece of prime rib when you see one.
by FlickO April 25, 2009
by butt weasel September 03, 2003
they were having butt sex cowboy butt sex
by THNDRBIRD17 May 30, 2009
by Le Niggar of Negros. January 22, 2012
by nighthawkdragon April 27, 2008