1. To be
arrested on information given to the
police, especially by underworld
associates. "
I wouldn't mind if I got dropped (arrested) on the trick (red-handed) but to clip (steal) the score (loot) and make a clean getaway and then get the finger put on me is what burns me up."
2. To be
identified formally by the complainant.
3. To be
betrayed to the
prison authorities.
- american underworld dictionary - 1950