presto chango UK /ˌpɹɛs.təʊ ˈtʃeɪn.dʒəʊ/US /ˌpɹɛs.toʊ ˈtʃeɪn.dʒoʊ/ exclamation1 •(informal) Indicates the suddenness of a change or transformation, as a magic trick in which one object appears to be suddenly transformed into another.Just one touch lets you go from black to a second color. Presto. Chango. Or back to black. Presto. Chango. Color copies have never been easier. — 1929
