Top Definition
to agree to a (usually coinflip) prop bet but back out at the last moment.
anyone wanna flip for $100? no grimstarring !
by CaptainBusto September 30, 2006

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grimstarr, grimmed. Of pizza faced nature. Male with erect penis not exceeding 2 inches. Genenral ghey activites. Douchebag.
so then we went to 'do-it' and i looked down and was like...what a grimstarr. see that dudes face...its like the moons fucking surface..what a grimstarr. that dude grimmed me off..what a grimstarr
by stan darsh August 18, 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