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1. A bowling pin that is shorter and squatter than a tenpin.
2. duckpins(used with a sing. verb) A bowling game played with such pins and a small ball.
[From its squat appearance.]
1. (used with a sing. v.) a game like tenpins played with a short bowling pin of relatively large diameter.
2. duckpin, a pin used in this game.
[1905–10; from the pin's resemblance to the shape of a duck]