Cousy is anything you want it to be when it needs to be.
Sarah has been being a little cous/y lately and it’s really been bugging me.

If you touch me one more time, I will slap in the cousy.
by Lee Becky February 17, 2019
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A New Zealand-ism referring to one's cousins, or extended family. Can be used to include extended family, friends etc.
Lets go grab the cousies first and then head up to Big T Takeaways for a mean feed.
by Graham 'Cous' Taylor July 04, 2006
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"LeBron James is the best NBA player ever!"
"You're crazy, it's obviously Cousy!"
by BobCousy June 20, 2013
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