Top Definition
An application of Pascal's Law: a change in the pressure of an enclosed incompressible fluid is conveyed undiminished to every part of the fluid and to the surfaces of its container.

Usually whist dancing, but not exclusively so, a person, usually female, while rub her rump on the crotch of a guy. During this exchange the junk of the man converts to the same properties as an enclosed incompressible fluid and if timed right can lead to the male's orgasm. A combination of the 'bumping uglies' and 'grinding.'
There was alot of bumping and grinding going on then suddenly we were grinding uglies!
av Davey Joel 8. november 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
Gratis daglig nyhetsbrev

Skriv din epost-adresse under og motta dagens Urban Word of the Day, gratis!

Alle eposter sendes fra daily@urbandictionary.com. Vi lover å ikke spamme.

×