Top Definition
One who is afraid of doing what it takes to get the job done. In relation to giving a male oral sex and running to the sink instead of swallowing.
My friend is such a sink-runner, he wouldn't come downtown and pick me up when my car broke down.
by dr.js August 24, 2006

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One who, after performing fellatio, runs to the sink to spit.
Dude I thought the chick was cool when she starting slobbin my knob but it turned out she was a dirty rotten sinkrunner.
by poonatic June 01, 2006

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