Top Definition
Most commonly used in Australia. Can be used as an insult to anybody, but generally laid off at your friends or acquaintances in a jokingly manner.

Can also have the potential for appraisals, such as another Australian colloquialism fully sick('fully sick, mate' after can be used as well).
"Your such a sick rat."
OR
"Your such a sick rheeet" (emphasize on the rat to show even more disgust)
by Jonathan.M October 22, 2007

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A scrawny little fuck that has balls bigger than a bull moose. This person can talk ridiculous amounts of shit and do ridiculous things and 90% of the time get away with it.
Nicky is a SICKRAT.
What a fuckin SICKRAT
by ballsy guy May 06, 2007

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Lotsa space for your liquids.

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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).

Buy the t-shirt