Top definition
Using the shoulder of a five lane freeway to pass a slow moving car in the left hand lane. Often this move is made by a douche bag that is driving a late model European coupe or sedan.
Son (sitting shotgun): Wow Dad! Look at that BMW pass that car up ahead.

Father (driving): Don't ever do that shit!

Son: Do what?

Father: The California slingshot, son.
by coined by T. Hoffman January 23, 2008
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