A person that you would also refer to as a loser. Generally directed at mates when they say or do something ridiculously idiotic. Can also say someone is 'kookin it' if they are doing something dumb, like re-dating their bimbo ex-girlfriend.
Dave's such a kook.
Old mate is kookin it so hard.
by K Biscuit December 3, 2010
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a poser who wears all the latest clothes for skating or surfing. and they could be assholes sometimes. they r really gay and they dont know shit about skating or surfing.but they can be really hot sometimes.
Kelly: ohhhh whos that guy??? does he skate???

Matt: thats just a kook and he cant skate for shit.
by Ryan Woods January 20, 2008
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A ginga minga, who pushes mongo.



Ed
" Damn, Mike D,, Theres kooks all over the show"
by Mark June 2, 2003
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Whoa dude, that kook just took your radical-mungo wave!!
by Sterling April 29, 2003
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Keeping Our Own Kids Safe
Soccer moms need to stop being trying to be KOOKS and let children live thier lives and learn from thier own mistakes.
by Charles Hall III February 15, 2008
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A person who claims they are doing good things for you, however are making your situation worse. Example: Dentists and chiropractors.
I went to the kook dentist that told me I needed 12 cavities when my teeth don’t even hurt.

The chiropractor pushed my spine in ways I’ve never felt before, now I have to see that kook every week.
by KingGriff December 7, 2018
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