by Brian X June 24, 2003

taking an entire stick of butter, sticking it into a womens vagina and having normal sex with it in there until it gets soft from the sweat. then you take it and put it in the womens anus, have anal sex so it gets mixed with her feces then let her poop it out into your mouth, thus creating a buttery poopy nugget.
Dude i was so drunk last night
i know dude so was I, i woke up with your sister and she said i gave her a Butter Nugget
i know dude so was I, i woke up with your sister and she said i gave her a Butter Nugget
by qwertyboi666 May 1, 2010

n. a smooth fucking session (not to be confused with the rough stuff in Brando's controversial butter scene in the Bertolucci film Last Tango in Paris)
As he and his wife grew older, he took consolation in the mellow rhythms of a butter fuck in their sleigh bed.
by V. Cummings August 3, 2006

by B. Hanback January 14, 2010

a thong tight enough that if the person wearing it were to poop, the thong would cut the feces into two equal halves.
Man 1 "Daaamn check out the butter cutter on that girl right there!"
Man 2 "Oh snap, its like her butt is wearing a tourniquet!"
Man 2 "Oh snap, its like her butt is wearing a tourniquet!"
by Smackysmacky December 3, 2009

After leaving your load on her tits, you keep on going, frantically, maniacally even, until the "substance" becomes buttery.
by echdarees June 29, 2011
