cuando las ranas críen pelo

== Spanish == === Etymology === Literally, “when frogs grow hair”. === Pronunciation === IPA(key): /ˌkwando las ˌranas ˌkɾiem ˈpelo/ [ˌkwãn̪.d̪o laz ˌra.nas ˌkɾi.ẽm ˈpe.lo] Syllabification: cuan‧do las ra‧nas crí‧en pe‧lo === Phrase === cuando las ranas críen pelo (idiomatic) that'll be the day; never; when pigs fly === Further reading === “cuando las ranas críen pelo”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025