When a hoopty comes to a stop, and the worn springs nose dive under braking, and then begin to bounce up and down, long after the vehicle has come to a complete stop. Usually, emmitting a loud metal-to-metal squeaking and groaning sound because the rubber spring isolators have long since been eroded away.
This may be accompianied by a subsequent stall, and backfire, with or without smoke, and/or a radiator shooting steam out of the grille.
See Movie: Uncle Buck
We were at the local cruise in, when everyone started laughing at this 80's land yacht that pulled off a wicked hoopty stop. The driver thought he was cool, pretending he had hydraulics, but it was really lame.