What is One-two Crunch?
1.
When a motorcycle rider is catapulted from their bike, lands on the ground, and is subsequently run over by their own bike, as momentum carries the trailing bike up and over their body.
"I saw Rossi take a one-two crunch, after highsiding a turn during a race."
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A bottom-feeding parasitic sea mollusc, which is able to adhere to other living things, esp. those in close contact with it, and suck th..