sing like a canary

To inform against someone to the police or other authority about his or her criminal or illicit behavior. I heard Joey Malone has been singing like a canary in the hopes of getting his sentence reduced. Let's make sure he's sleeping with the fishes before he gets the chance!

Common Names:

Name	Pronounced	Usage
Vira	-	Ukrainian
Raynard	RAY-nahrd	English
Ranulf	-	Scottish
Fabijan	FAH-bee-yahn (Croatian)	Croatian, Slovene
Heli (1)	-	Biblical, Biblical Latin
Minoo	-	Persian