Cojones

Cojones (s. cojón ) and huevos (eggs) or bolas/pelotas (balls) are vulgar Spanish curse-word usages for testicles. The singular form, cojón contains the augmentative suffix -ón (implying magnitude), and derives from the Vulgar Latin coleonem, the accusative form of coleo (testicle), an augmentative form of cōleus (leather bag for liquids); its variants are cūleus and culleus. The le → j or li → j pronunciation shift is common to Latin and Spanish, e.g. folia → hoja (leaf), which is a cognate with the English word "foliage".

The exclamation ¡Qué cojones! is used to express pain, anger, excitement or irony, and is approximately synonymous with the interjection ¡coño! (vulva) expressing anger and surprise. Analogues to the Spanish cojones exist in Galician collóns, Valencian and Catalan collons French couilles, Italian coglioni, Portuguese colhões, Romanian coaie, Leonese coyones, Dutch kloten, German Klöten, the Welsh ceillion.