blow one's cover

Inadvertently give away one's secret identity, as in Mary came to the annual meeting pretending to be a shareholder and hoped no one would blow her cover . This expression uses blow in the sense of "expose or betray," a usage dating from Shakespeare's day.

Common Names:

Name	Pronounced	Usage
Iro	-	Greek
Nithya	-	Tamil, Indian, Kannada, Telugu, Malayalam
Abd Al-Wali	-	Arabic
Barr	[ba:]
Steren	-	Cornish
Dvorah	-	Hebrew