fundillo

== Spanish == === Etymology === From fondillo, from fondo +‎ -illo. === Noun === fundillo m (plural fundillos) seat; crotch (of trousers) bottom; rear end; derriere === Further reading === “fundillo”, 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