Top Definition
A place of worship (Catholic, Jewish, Protestant, etc) that attracts an inordinate amount of good-looking, young professional types with a reputation as the place to go go to hook up for both spiritual and booty worship.
You're at an Ass Mass when the kneeling segments entail dozens of women simultaneously reaching back to pull down their shirts to hide tattoos, and pull up their low riders to cover their thongs
by -vMAN- December 03, 2009

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Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

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someone who has an incredibly large ass....a huge booty shaker, more ass than person
Her assmass is beyond calculation!
by badback9 May 31, 2011

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

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.

Buy the mug

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