Top Definition
The black slimey stuff on your feet from hockey skates after skating in them.
There's bumsac all over my feet
by John Fergusen August 14, 2007

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the space or skin between your testicals and your anus.
Sheri: wanna know what turns me on?
Bob: what, girl.
Sheri: when guys lick my bumsac
by s34d0g January 18, 2009

The Urban Dictionary Mug

Lotsa space for your liquids.

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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