Top Definition
A bug that no one has ever seen before that lives in your asshole. At the most embarassing moment, the bug appears out of your asshole, bites you in the back of your balls and runs back in your ass.
Damn that nipdart! To this day I have never caught him.
by Chunners October 29, 2007

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The tiny, black, flying insects, usually seen in outhouses, that nip at your nuts and dart up your ass.
Upon returning from the latrine, David exclaims, "I just swallowed a Nipdart and I know it just flew off a log in the outhouse!"
by Hipstr67 May 12, 2016

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

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