köken: Inherited from Old Spanish cachondo (mid-13th c. in Libro de los animales que caçan), probably inherited from Vulgar Latin *cattulibundus, from catuliō (“to be on heat”) or catulus (“whelp”) + -bundus. Equivalent to cacho (“chub”) + -ondo.
Me muevo un poco debajo de ella, para que se dé cuenta de que estoy cachondo. —¿Estás excitado? —me murmura al oído.
köken: Compound of やり (yari, 連(れん)用(よう)形(けい) (ren'yōkei, “stem or continuative form”) of the verb やる (yaru, “to do; to fuck”)) + ちん (chin, clipping of ちんこ (chinko, “cock; penis”)). Derived by analogy from ヤリマン (yariman).