Top Definition
The male act of tucking a penis behind his legs just below his ass. Often used by transvestite males to hide penis.
Watch out, that dude's no chick. He's just got a nasty tuck under and some nice fake tits.
by The Doctor February 14, 2005

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The uncomfortable condition of having your balls and sometimes penis tucked under your inos. Often caused by poorly designed seats.
The seats at the MCC computer lab always give me a bad case of tuck under.
by Forrest Klump March 12, 2009

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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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.

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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).

Buy the t-shirt