Used when in a situation that is not favorable. See also: crummy
"This traffic is crumby!"
"enuff Z'nuff"
by andyfellovernet April 9, 2003
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The cotton sediment that aggregates in a mans buttcrack from the grinding action of his ass against boxers throughout the day.
After wearing the same pair of boxers for three days straight, I pulled a lump of crumbis from my ass big enough to qualify as a living creature.
by Dehgeh December 24, 2008
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(n.) to be in a situation that is similar to the crumbs of a cookie
(v.) to hump something so that it gradually disappears
person 1: dude after my leg got chopped off by that serial killer it hurt like hell
person 2: wow thats a crumby humper

Mr. Horney: I was really hard and crumby humped my stuffed animal to nothing
by Mr. Horney May 24, 2009
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the art of crumbs that accumulates on ones chest while eating in bed
"Yo, you've got crumby neck again!"

"Maybe I'll just put it back in the bag."
by kmj72099 June 12, 2010
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A person with bad genetics. Usually has eczema or something wrong with their teeth. They always look tired.
Troy: Hey, it’s bad genetics.
Kaden: No Troy, That’s Nate Crumby
Troy: What’s the difference?
by BigBodyMiagy January 9, 2019
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Noun: Sex Act:
When a man cums into a raven-haired woman's mane and spreads it out with his hands so that it resembles a nun's habit. Note: the unfortunate recipient must have longer than shoulder-length hair. Dyed is preferred, especially if she just had her roots did.
I totally just gave Selma Hayek a Crumby Nun. I mean, she was definitely starving for work. No, I'm not less of a man for having sexual fantasies about the Flying Nun!
by Mr. Kowalski's sexplorium April 11, 2017
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