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1 definition by C J Sweeney

 
1.
A word used to describe changing gear and accelerating quickly.

Chica refers to the changing of the gear and Boo refers to the accelration.

This word is onomatopoeic.
If you were making a get away in a car you might say, "Let's chicaboo out of here!"
by C J Sweeney November 03, 2006