prairie oyster

noun2

1. •
   A drink consisting of a raw egg with yolk intact, Worcestershire sauce, hot sauce, salt, and ground black pepper.

   • ‘Would you like a Prairie Oyster?’ She produced glasses, eggs and a bottle of Worcester sauce from the boot-cupboard under the dismantled washstand: ‘I practically live on them.’ — 1939
2. •
   A Rocky Mountain oyster; a bull calf testicle prepared as food.