A Heavy Duty Booty, usually on a fit woman with tight buttocks.
Male 1: "Damn, how she get all o dat?"
Male 2: "I ain't know man, she must work out or suntin."
Male1: "Hell yeeah, she got a Tonka Donk!"
by JabbaB May 28, 2010

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Top Definition
It is another word for Har-roop
Har-roop is acting like such a tonk-a-donk today
by brownkidsrock March 02, 2011

The Urban Dictionary Mug

Lotsa space for your liquids.

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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