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1.
coofus: pron. "koo-fuss"

A glorious mixture of the two describing words "cool" and "doofus".

Generally a term of gentle insult between friends. Often directed at people also termed "Mr. F". (See Mr. F)

Recommended only for use inside social circles where the definition is widely known to all. Otherwise, misconceptions about the word's definition WILL lead to misunderstanding, and eventually, unwanted offense being taken.
"Dude, you're such a coofus!"

"Hey coofus, how's you're day going?"

Person A - "Heeeeeeyyy I got all the new Harry Potter books and I'm gonna read them!"

Person B - ".....what a coofus."
by skiffy99 February 17, 2011