Top Definition
Anal sex
Bump ass. The receiving or giving sex by using the anus

Now and then, for a change we bump ass. It makes for a real change.
by susieque February 26, 2010

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An individual, generally female, who exhibits a well defined and prominent glutinous maximus. An essential element of a bumpass is the ability to gyrate the individuals hind-quarters in a very purposefully explicit manner. Also see Bumpass Shuffle
Whoa! Check out the bumpass on dat chick! Or Damn! Tracy sure does have a bumpass!
by archetype42 November 29, 2006

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The Urban Dictionary Mug

Your favorite word on a white mug.

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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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Broken, busted, crappy, shitty, junky, non-working, inoperative or just plain pisses you off.
I got stuck at that bump ass stop light twice.
by Shiznamslappy April 16, 2009

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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