Top Definition
An expression used to state you are about to undertake a difficult challenge, equal to or above your skill, whilst being unprepared.

Said expression often causes the speaker to be toothless for the time it takes to say it. Do not be alarmed, your teeth always return.

A feeling of smug superiority will normally come over the user if they succeeded in their goal.
1. Fighting a black belt when you have no fighting experience and just ate a pound of fried chicken and mashed potatoes.

2. Taking an Advanced Calculus Regents when you have a C average in basic math.

3. Eating a roast beef/steak with no teeth.

4. I'm Gummin' it.
by Vito93 March 11, 2010

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to receive a blow job from an old person who has no teeth.
i went to the old folks home and the 80 year old women was gummin' it
by Zach Beaulieu April 25, 2006

The Urban Dictionary Mug

Lotsa space for your liquids.

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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