A fork of Rural Dictionary
A driving maneuver in which an individual of class and taste accelerates through a left turn by reaching through the driver's-side window, grasping a conveniently located streetlight pole, and swinging herself (and car) 720° around said pole, thereby launching her car forward at a briefly supersonic speed.
"Holy shit, did you hear the sonic boom when that individual of class and taste pulled that sick El Chapo Slingshot?"