put the finger on (someone)

very informal

to tell someone in authority, especially the police, that someone has committed a crime.

If Big Joe finds out you put the finger on him, you won't live long enough to spend the reward money.

• the first thing
• the first thing in the morning
• the flavour of the month
• the four corners of the earth
• the four corners of the world
• the ... from hell
• the front office
• the fruit of loins
• the fruit of your loins
• the full monty
• the funny thing is
• the fur flies
• the game's up!
• the genie is out of the bottle
• the ghost at the feast
• the gift of the gab
• the glory days
• the glory days of
• the glory days of something
• the gloves are off
• the goggle-box
• the good old days
• the gory details
• the gospel truth
• the grand old man of