Top Definition
One who is so awesome that if they were king or queen he or she would kick everyone's ass. And when people ask how ruling the world is, he or she would be like, "see that ass over there. Kick it. Didn't that feel good? Now imagine kicking everones ass everyday. That's what's it's like ruling the world. Now turn around so I can kick your ass." And that is kickasstastic.
Holy crap!!! I just saved that baby from getting hit by a runaway grocery cart, and the baby's mom gave me twenty dollars. That's kickasstastic! or I'm kickasstastic!
by John McClendon January 28, 2007

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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

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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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too cool for the human mind to fathom

Just came out of the all knowing one's head (Kasi)
yo, bitch, this macaroni and cheese is kickasstastic!
by Kasi December 27, 2004

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