Top Definition
Short and to the point, a fat man who jacks off, or a fat man that hasn't been laid and has no other choice.
"Looky here a jackopotamus, poor bastard."
by Ashmarie November 29, 2006

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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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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