Top Definition
A confusing and dizzying combination of tumbling and somersaulting while one is in mid air, usually a result of a botched high dive.
"Those guys look ridiculous, tumbersaulting through the air like that"
by steve8311 May 26, 2009

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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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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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