crouch rocket
n.— «Dozens of drivers in Newport News found themselves stunned Saturday afternoon as a motorcycle raced toward them at a a high rate of speed. Al Winall was one of those drivers. “All of a sudden I looked up and one of what I call crouch rockets coming up the wrong side of Jefferson Avenue,” he said.» —“Biker Goes Wrong Way Through Traffic To Flee Police” by Lisa Godley WTKR-TV (Hampton Roads, Virginia) May 28, 2006. (source: Double-Tongued Dictionary)
Further reading
Need a slang term that can replace just about any noun? Try chumpie. If you’re from Philadelphia, you may already know this handy placeholder word. And there’s Queens, Brooklyn, Staten Island, Manhattan, and … The Bronx — why do we add...
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In Kentucky, certain types of shiny, sporty motorcycles are often called “crotch rockets”.
Yes, it’s very common. I recorded “crouch rocket” because it’s a rarer variant.