Top Definition
A child. Usually someone elses child, although it can also be used as a future child you don't want to ever have.
"im going to shove that happy meal down your little crotch monster's throat if he throws another mcnugget at me!!!"

"nah homey, shes on the pill. don't need a little crotch monster anytime soon.
by gravityXaddict July 17, 2008

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When the sweat works with your underwear to make your asshole a flamethrower. There is a subsequent walk associated with crotch monster akin to a baby with a full shit diaper.
I got a bad case of crotch monster at Six Flags yesterday.
by 7 Lady Godivas October 17, 2015

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A hungry midget that lives in your buttcrack. He eats your pants, which causes murphs and wedgies.
Ivan, the crotch monster's eating your shorts.
by wysiwyg May 15, 2004

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt