switch up

English

Verb

switch up (third-person singular simple present switches up, present participle switching up, simple past and past participle switched up)

1. (intransitive, slang) To change, usually in regards to how one feels, thinks, or behaves.
   • 2011, Lauran B. Webb, Watching and Waiting, page 81:

     People will switch up on you in the middle of the stream and just as soon as you turn your back they will stab you in it.

   • 2013, Jamila T. Davis, She's All Caught Up:

     “I don't know about you anymore. Since you got a boyfriend you switched up,” April said.

2. (intransitive, slang) To malfunction.

Usage notes

• Often used with on.

Further reading

• “switch up v.” under “switch v.¹”, in Green’s Dictionary of Slang, Jonathon Green, 2016–present