get wise

English

get wise

(intransitive, slang, often with "to" or with "with") 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.
(intransitive, slang, often with "to") 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.
- 1934, Agatha Christie, chapter 8, in Murder on the Orient Express, London: HarperCollins, published 2017, page 254:
  'How did you get wise to all this, that's what I want to know?'

(slang) to see through deceit