blow the gaff

(British old-fashioned, informal)

to cause trouble for someone by letting other people know something that they were trying to keep secret (often + on ) They killed Green because he was about to blow the gaff on their drug dealing.

Common Names:

Name	Pronounced	Usage
Haywood	['heiwud]
Liza	['laizə]
Iodocus	-	Ancient Celtic (Latinized)
Vijay	-	Indian, Hindi, Marathi, Tamil, Kannada, Telugu, Malayalam, Punjabi
ÖZge	UUZ-ge	Turkish
FrĪDrihs	-	Latvian