Top Definition
Verb; The act of ramming your vehicle into the rear end of another vehicle at a considerable speed.
-"Damn, that guy was going pretty fast when he hit you"

-"Yeah, he muffler fucked me pretty bad"
by Whiskie December 01, 2009

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A fag who fucks mufflers, usually named jimmy
look at jimmy...that muffler fuck!
by Titts December 04, 2007

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.

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