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1.
n. (fuht-buh-ker)

One who fucks butts. Same as butt fucker but the first letters are switched. Usually referring to gay men.
That Timmy boy down the road is a real futtbucker.
by GINGABR3AD March 03, 2007
 
2.
a man who has sex anally with women, derived from the term "butt fucker" which applies to homosexual men, a "futt bucker" is a heterosexual man who likes to stick it in women's back door.
I need a girl who will let me have anal sex with her because I am a "futt bucker".
by Stubb Rock May 03, 2004