Top Definition
A ridiculously strong and ever-lasting oath. If broken, results in flipping off the promise-breaking party by the promisee as well as loss of respect and other unspeakable emotional, physiological, and physical consequences. More binding than a pinky promise. Abbreviated as MFP.
I flipped her off after school today because she hooked up with him, even after she Middle Finger Promised me she wouldn't.
by thecockblockersss June 14, 2010

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Similar to a pinky promise, except with he use of the middle fingers. Usually a bond between two bros. It's a promise, acknowledging, "if I break this, I'm fucked."
Bro 1: Is this shit legit?!

Bro 2: I middle-finger promise!

A bond then can never be broken.
by JaRoy October 19, 2011

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Lotsa space for your liquids.

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Your favorite word on a white mug.

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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