dippin
n.— «Maneuvers include sidin’—another term for doughnuts—and dippin’, in which a driver hits the brakes and the gas to make a car rock back and forth in time to, say, Tupac Shakur’s “Starin’ in My Rearview” or Mac Dre’s “Thizzelle Dance,” a slang reference to Ecstasy.» —“Deadly Swerves and Spins” by Louis Sahagun in Oakland, Calif. Los Angeles Times Mar. 7, 2005. (source: Double-Tongued Dictionary)