1 definition by Mr. Rain Man

A verb that means to accelerate in one's car while the passenger is still entering, with one foot inside and the other outside the car.
Driver: Iight, so we're hitting up D.C right?

Passenger: Yeah, hold on lemme get in

Driver (steps on the accelerator pedal): Iight, let's jet

Passenger: Ey don't Javan me!

Driver: Oh my bad, I thought you was in.
by Mr. Rain Man March 18, 2009
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