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The measure of how chill a bro is (Because everyone knows only bros are chill).

Not to be confused with chillarious or being chill and hilarious at the same time.
Dom: "Damn, that bro is pretty freaking chill, his chillarity is over 9000!!"

Frat Griffin: "After I pounded that natty, my chillaritiy reached maximum capacity."
by Chillarity October 12, 2011
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