to defrost or defog ones windows for visibility purposes
Garrett ran into a car parked on the side of the road because he did not wait for his windows to defrog.

I spent an hour sitting in my icy car while my windshield was defrogging.
by Mr. Pudo April 04, 2011

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Top Definition
a setting on most cars and vehicles which removes frogs from the windshield
the window is all froggy better turn on the defrog
by Matt Huff November 11, 2009

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