Top Definition
A pimlpe or zit on your ass
Jon asked his girlfriend to pop his Ass-troid after they had sex in the shower.
by Clean ass June 30, 2009

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Meaning a pain in the buttox or your buttox being destroyed or in MAJOR INJURIE
That kick was an ASSTROID
by Mystery1234567890 February 16, 2009

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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

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The space rocks that fall to earth and get stuck in peoples' asses, or people who act like said space rocks.
"You are such an asstroid!"

"Are you going to the gay parade, asstroid?
by Tessthemess:) November 12, 2009

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.

Create a mug

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.

Buy the t-shirt

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