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mountain oyster

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noun
  1. the testis of a calf, sheep, pig, etc., used as food.
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Origin of mountain oyster

An Americanism dating back to 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for mountain oysters

heart, marrow, stomach, tongue, tripe, brains, chitlins, chitterlings, giblets, gizzard, kidneys, liver, pancreas, sweetbread, testis, thymus