1 definition by Crabby McClaw

Like a muffin top, only lower, and specifically in the rear. Caused by insanely too-tight shorts or pants that squeeze one's butt cheeks out like it's butt cleavage.
plumbers crack muffin top
It wasn't just a plumber's crack, there was serious button top on display.
by Crabby McClaw June 20, 2014
Get the Button Top mug.