whistle Dixie

blow the whistle

To disclose information to the public or to appropriate authorities concerning the illegal or socially harmful actions of a person or group, especially a corporation or government agency.

clean as a whistle

Very clean.

not worth a whistle

Worthless or pointless.

wet one's whistle

To have a drink; to quench one's thirst.

whistle for

To request or ask for with no chance of success.

whistle in the dark

To speak of something despite having little knowledge of it.

whistle in the wind

To attempt something that is futile; to say something that is not heeded.

whistle past the graveyard

To attempt to stay cheerful in a dire situation; to proceed with a task, ignoring an upcoming hazard, hoping for a good outcome.