a humo de pajas

== Spanish == === Etymology === (This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.) === Pronunciation === IPA(key): /a ˌumo de ˈpaxas/ [a ˌu.mo ð̞e ˈpa.xas] Syllabification: a hu‧mo de pa‧jas === Adverb === a humo de pajas (idiomatic, mostly in the negative) unthinkingly === Further reading === “a humo de pajas”, 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