Top Definition
An ass so large and luscious, that it has it's own gravitational pull. Typically located on an African-American Female. If you come too close to one please beware, you might fall into the event horizon--much like a black hole--and not be able to prevent yourself from grabbing it. This term is a combination of the latin word 'gravitas' (weight), and the word 'ass.'
Tyrone: "DAYUM BRUH! Have you seen dat phat ass on Shaniqua lately?"

Jamal: Yeah! Seriously...she got dat gravitass!
by Mister Smoooth May 24, 2011

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