Any compact imported economy car, usually Japanese in origin, that has been excessively modified so as to resemble some bastardized, twisted mockery of a sports car, but has had little, if any serious performance related modification. To add to the illusion of being a performance vehicle, Fart Cannon mufflers are often added also to make the vehicle sound powerful to the untrained ear.
"Check out that dumb shit in the poser coupe!"
"HAHAHA That soccer mom in the minivan just left him in the dust!"