1 definition by Smackysmacky
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