[2] The dish is served in parts of Canada, where cattle ranching is prevalent and castration of young male animals is common.

In Spain, Argentina and many parts of Mexico, they are referred to as criadillas, and they are colloquially referred to as huevos de toro (literally, "bull’s eggs"; besides its literal meaning, huevos is a Spanish slang term for testicles) in Central and South America.

A few other terms, such as "cowboy caviar", "Montana tendergroins", "dusted nuts", "swinging beef", or simply "mountain oysters" may be used.

[5] The dish, purportedly cowboy fare,[6] is most commonly found served at festivals, amongst ranching families, or at certain specialty eating establishments and bars.

Castration in veterinary practice and animal husbandry is common and serves a variety of purposes, including the control of breeding, the growth of skeletal muscle suitable for beef, and temperament alteration.