tener la mosca detrás de la oreja

== Spanish == === Etymology === Literally, “have the fly behind one's ear”. === Pronunciation === IPA(key): /teˌneɾ la ˌmoska deˌtɾas de la oˈɾexa/ [t̪eˌneɾ la ˌmos.ka ð̞eˌt̪ɾaz ð̞e la oˈɾe.xa] Syllabification: te‧ner la mos‧ca de‧trás de la o‧re‧ja === Verb === tener la mosca detrás de la oreja (first-person singular present tengo la mosca detrás de la oreja, first-person singular preterite tuve la mosca detrás de la oreja, past participle tenido la mosca detrás de la oreja) (idiomatic) to smell a rat Synonym: tener la mosca en la oreja ==== See also ==== haber gato encerrado === Further reading === “tener la mosca en, o detrás de, la oreja”, 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