The matter left behind on the toilet seat from a previous person. Weather it's.... s**t, hair,sweat, anything with pigment. (Usually men). Any type of matter that provokes you to clean and or sanitize the damn thing prior to use. It F**king DISCUSTING , not to mention RUDE.
--"What's wrong honey?"
- "Someone left Ass Crumb's on the seat again"
--Silence
- "So discussing"! (cringe)
- "Someone left Ass Crumb's on the seat again"
--Silence
- "So discussing"! (cringe)
by KyCalli September 21, 2015

Difficult, unrewarding, tough or nearly impossible to accomplish. Orson Welles did a commercial spot for frozen peas, during which he was required to say "crumb-crisp coating", at which he remarked, "ooh, that's tough."
Lois: How did the hedge-trimming go?
Nick: It was crumb-crisp, I'll tell you. I had the wrong sized blade and there were many biting flies. But I finished at last.
Nick: It was crumb-crisp, I'll tell you. I had the wrong sized blade and there were many biting flies. But I finished at last.
by Jan August 6, 2004

I was crumbing so hard at the crib until Lindsay Lohan told me she wanted to make a sex tape and it motivated me to leave the house.
by mesa g. July 22, 2010

Small granules of recycled tires used to pad artificial turf athletic fields or playground surfaces. The crumbs are a bigger and softer than grains of sand. A good way to use recycled used tires.
by yes juanito yes October 23, 2014

by Bubba D March 21, 2008

by itsmaddylol April 12, 2011

by Tisigornorich July 2, 2010
