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prairie oyster
testicles from cattle. When young bulls were "cut" (castrated) and became steers/bullocks at branding time, the removed testicles were referred to as prairie oysters. Some people used to BBQ and eat them, but I have never eaten them: prairie oysters - testicles from cattle. Also, mountain oyster.
Contributor's comments: I have also heard bulls' testicles referred to as mountain oysters.
Contributor's comments: Bulls testicles: Better knock out his prairie oysters.
Contributor's comments: This is an Americanism.
Contributor's comments: We have always called them Bush Oysters. Taste great sauteed and served with garlic sauce.