A person whose rear end is spherical, and protrudes upwards and outwards out of all proportion to the rest of them.
Tony was mesmerised by her bubblebutt.
by FlightyR August 10, 2006

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Top Definition
Contrary to popular belief Bubble Butts are ~not~ big asses. Bubble Butts are round like a globe, usually complement a slender/slim body, they are very tight and firm unlike the one's on fat asses...
she is skinny but - dam - she has a bubble-li-cious bubble butt ass.
by gravisan January 02, 2006

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A nicely rounded behind.
That girl's curvy! Got a nice bubble butt!
by Meek T. Eep October 28, 2005

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A big, fine round ass. Most black girls and many white and latina girls are blessed with these anatomical masterpieces. They are as fun to watch and just as fun to grab.
Bubble Butts have the potential to automatically give tens of millions of guys a boner.
by The Kentucky Yankee November 05, 2005

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1) Perfectly formed ass
2) The most wonderfult thing in the world.
3) Proof that God exists.
The girl that's interested in you has a tight body, with a real nice bubble-butt.
by DavidFury December 22, 2004

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The Urban Dictionary T-Shirt

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A big, fine perfect round ass. It is not huge and gross, just bigger and better than average size. Every girl should have one of these. These anatomical masterpieces can give many guys an erection.
MMMMMMmmmmm.....that lovely redhead has such a big fine bubble butt. :)
by Radical Republican November 05, 2005

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A butt that is round, sexy and plump. It is shaped like a bubble and it shows on a person's figure.
Hector has a bubble butt.
by Adriana June 10, 2005

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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