S&P stock for finks?

• Snitch in a police station
• Birdman of Alcatraz
• Informer, informally
• Packed item that might fly away?
• Informant, informally
• Police informer
• Someone acting as an informer or decoy for the police
• Talker looking for a deal, often
• Sucker at the bar?

WordNet Word definitions in WordNet
n. someone acting as an informer or decoy for the police [syn: fink , snitch , snitcher , stoolie , sneak , sneaker , canary ]