A piece of ass-skin resembling the tied end of a balloon or piece of popcorn chicken located within the assholes perimeter.
Janet's butt knot was in full view while she got pounded doggy-style by Jack. Chrissy liked the looks of the butt knot and proceeded to bite it gently.
by Caliman April 23, 2003
Stage fright for homosexual actors
" I was doin fine until I had an attack of Butt Knot"
by Baz February 21, 2004