Top Definition
originally (1964), a Ford Mustang (possibly after the Mustang logo), later to include competitors like the Chevrolet Camaro; by extension, a car whose main purpose is either to a) impress others, b) be fun to drive, c) run errands at high speed, or d) all of the above.
My grandfather has an old pony car in the garage. Keeps it in mint condition. Drives it on weekends.
by kiph55 June 20, 2009
a medium size NASCAR 'National Association for Stock Car Auto Racing' racecar.
I still don't know why they call the Indy and NASCAR: "open wheel" races.
Any one with an inkling?...
by hytham_hammer July 11, 2005
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