One who is nuts for butts, that is, an anal sex enthusiast. Can refer to straight or gay people, though it is likely to be taken as offensive when used to describe a gay person.
Remember that girl I started hooking up with at the party? Turns out she's a total butt-nut. Fortunately, she's really anal about personal hygiene.
by Vulgaris Tunge April 01, 2005
Hey, Look at that guy in the thong! Is that a bad case of hemmroides or what?
No, It just has a butt-nut.
No, It just has a butt-nut.
by uglyman February 15, 2005
by knowledge is power February 17, 2005
the clumps of human excrement found on arse hairs. they cling to the hairs forming clumps,known as butt nuts. they occur when the bumhole has not been properly wiped with toilet paper.
oh no i have got a load of dried shit around my arse, they are sticking to my arse hairs. i hate butt-nuts!
by Mr Frumley November 03, 2006
When she examined her anus in the shower, her fingers encountered a butt nut the size of a soy bean.
by Al January 24, 2003
by Lost Endeavor February 18, 2009
by Teegeay October 22, 2010