1 definition by Muftasizer

C.O.O.I. is an abbreviation for Chime Out of it. Usually used in the context of someone 'chiming' into your conversation.

C.O.O.I. isn't pronounced in letters, it is pronounced like Coo-ee.
Person 1: "C.O.O.I. Bob!"

Person 2: Yeah CHIME OUT OF IT!
BOB: Ok.
by Muftasizer July 30, 2009

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