Top Definition
During the act of anal intercourse, the person on the receiving end has a nasty case of firerreah.

The outcome is something to the effect of putting your thumb over a garden hose.

Dude, last night a brownie earthquake went down in my house and it shot about 3 yards in each direction.
by alejandro hayes August 29, 2007

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Poop Terminology: a poop that is watery, brown, and stings. The after effect is mild to severe itching.
When John finished in the bathroom, he knew he had made a brownie earthquake because his butt was stinging.
by poop terminology lord May 21, 2008

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.

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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