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Super cool guy, like James Dean cool, most awesome dude, doesn't have to try, just is totally amazing . Aka, Bubba, Dean Calvin Cool!
by Eureka1973 September 11, 2018
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An expression for "ok" or "sounds good" without having to sound too out of place by saying iight, all right, etc.
Mark: I've got a lot of homework tonight, but I'm going skip it so we can go get something to eat later.
Kevin: J cool
by 2004 b. May 08, 2006
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