Top Definition
A little piece of dried poop, which, when pulled loose, takes along with it a collection of butt hairs so it resembles a spider body and hair legs.

It's a guy thing. Women do not have ass spiders.
When he pulled the crusty bit loose it ripped out a bunch of butt hairs leaving him holding a worthy ass spider in the paper.
by LabMom July 30, 2009

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<i> noun </i> generic term for any type of sexually transmitted parasite.
"i heard you banged rhoda kirkman." "yeah, dude. i got a bad case of ass spiders from her."
by the dastardly one December 30, 2003

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a spider that goes in your ass when u sit on the toilet
i saw a ass spider making babies with a penis snake
by asspro67 October 04, 2005

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The Urban Dictionary 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