get wise

verb2

1. •
   (slang) To become aware of or see through a deception.

   • Last night, I thought he'd sign the deal, but this morning he'd got wised somehow.
   • The substitute soon got wise to their particular tricks.
2. •
   (slang) To be impertinent.

   • He was getting wise, so I cracked him one.
   • He wasn't just getting wise, he was getting wise to my mother.