kick it, v.⁴ — Green’s Dictionary of Slang

kick it v.⁴

[put one’s foot on the gas pedal]

(US) to accelerate a vehicle.

1976		Eble Campus Sl. Nov. 3: kick it – to accelerate quickly.
1986		R. Campbell In La-La Land We Trust (1999) 156: Whistler kicked it to forty-five and almost missed the twin ruts and the thinning of the palmetto.