Top Definition
A party that is dominantly male, involving masturbation by all those who attend, although the masturbation is not intended to be mutual. You can commonly find people doing a circle jerk or playing soggy biscuit.
Adolescent: "We havin a jack party at Craig's house!"
Ghost of Christmas Past: "I would also like to come to Craig's house to wax my candle..err..jack off.
by Jack Party September 17, 2007

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