be a wake-up

be a wake-up

To be aware or conscious of something. Primarily heard in Australia. Is she a wake-up to her husband's illegal activities?
Farlex Dictionary of Idioms.

be a wake-up (or awake up)

be fully alert or aware. Australian & New Zealand informal
Farlex Partner Idioms Dictionary
See also:
  • on one's
  • on someone's
  • other than
  • other than (something)
  • out of one's
  • let something drop
  • #dead
  • (I've) got to go
  • do someone or something justice
  • a lulu