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A really bad joke, almost a 'dad joke' , made by one of your friends. One of those jokes someone thinks is funny but really isn't , that's a CP joke. Usually after the joke has been made, you make a "tssss" sound with your tongue against your teeth and then say CP. It can also be said after your friend has tried to make something funny, but it isn't actually funny.
Omg that was such a CP joke Larry!

"Why did the cow cross the road? To get to the moooovies" -Larry
"Tsssss CP" - Bob
by Anonymous 309 March 06, 2017
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