| 1. | Piston Slap | ||
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In a internal combustion engine when the cylinder is oversized and the piston will rock side to side producing a knocking sound. Chad's car has really bad pistion slap
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| 2. | Piston Slap | ||
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The act of fuckin a loose hoe, whose pussy is so loose a man's crank will slap around in it. When I was fuckin Cathy i suffered from piston slap.
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