virar a casaca

== Portuguese == === Verb === virar a casaca (first-person singular present viro a casaca, first-person singular preterite virei a casaca, past participle virado a casaca) (intransitive) to turn one's coat (to turn against a previous affiliation of allegiance) === Further reading === “virar a casaca”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026