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)
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.