idiomatic expressions

[Anonymous]

May i please have help with the idiomatic expression

Somebody might blow the whistle on your plan.[/b]

[RonBee]

To blow the whistle on something is to reveal information about it. Presumably, that is information that the person involved does not want revealed.

[Tdol]

A pereson who makes public problems in companies or the government, etc, is called a 'whistleblower'. ;-0