Top Definition
An affirmative word that goes one step beyond "definitely." Denotes that they will definitely make a mental effort towards the idea or action they have affirmed, with a humorous, uplifting tone.
Person #1: Are you gonna be at the concert tonight?
Person #2: DEFIMENTALLY!!!
by WordSmith2490 December 07, 2009

The Urban Dictionary Mug

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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.

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The Urban Dictionary Mug

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).

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