When your cover is blown; To be
exposed of;
Found out about; To get caught.
Specifically applies to that of criminals, spies, moles,
undercover police, etc.
Kathy and Jonathan found their
front door open as they returned home from a movie. Apprehensive, they walked inside only to see a burglar
slipping out the back window saying, "I've been made"!
Kimberly was caught stealing cookies from the
cookie jar at grandma's. She's been made.