Top Definition
Putting your bare asshole over someone's nose while they are sleeping causing them to wake up from lack of oxygen.
When they wake up, you fart.
Paul passed out the other night from drinking too much bourbon so Randy decided to throw down the assblast asphyxia. Unfortunately for Paul, Randy had some Taco Bell earlier that day causing him to shart all over Paul's face.
by jeffreybruce June 04, 2009

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