blow someone's cover
The phrase 'blow someone's cover' is often used in contexts involving secrecy, such as espionage or undercover operations.
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Definition
B2Espionage
(informal)To reveal the true identity or purpose of someone who is trying to keep it hidden.
Example
- The spy was captured after an informant blew his cover.
B2General
(informal)To expose someone's secret or hidden activities, often ruining their plans.
Example
- Her plan to surprise her friend was ruined when someone blew her cover.
Similar
Terms that have similar or relatively close meanings to "blow someone's cover":
blow the gaffbreak coverblow the whistlecover updrop a bombshelltip one's handsteal someone's thunderblow someone's mindblow the roof offblow someone's brains outexpose oneselfblow apartblow offtell onblow overblow up