switch up

== English == === Verb === switch up (third-person singular simple present switches up, present participle switching up, simple past and past participle switched up) (intransitive, slang) To change, usually in regards to how one feels, thinks, or behaves. (intransitive, slang) To malfunction. ==== Usage notes ==== Often used with on. ==== Translations ==== === Further reading === “switch up v.” under “switch v.1”, in Green’s Dictionary of Slang, Jonathon Green, 2016–present.