A person who describes another being with this adjective insults them, referring to them as being a camel's penis.
Person 1: Heeey man, look at mah mad wheelz and mah full on sub woofer
Person 2: wow.. you're a cool dude...
by Jayjello September 29, 2010

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'Cool dude' is a term used to define someone (in other words, a 'dude'), who possesses 'cool' personal qualities.
The term 'cool dude' can be used in the 1st person, about oneself, or used to describe another 'cool dude'.
'Yo I'm a cool dude'
'That guy's called Chris, no way is he a cool dude!'
by Charlotteyaaaaa January 10, 2009

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When you're really cool and also a dude to the point where the words being seperate is beneath you so they merge together to make you a Cooldude.
"Yo have you met Dan that dude is so cool that I swear he must be a Cooldude."
by Longdick Everhard October 11, 2016

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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).

Buy the t-shirt