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Region: US | Usage example: He announced new features before testing; he went off half cocked.

Go off half cocked

Meaning

Act prematurely or without enough preparation.

Usage

Used when someone leaps into action too soon.

Origin & History

Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.

Firearm reference to the hammer not fully cocked, causing misfire.

Appeared in American frontier speech in the early nineteenth century.

Related Idioms

Off the cuff

Spoken without preparation.

Glass half full

Having an optimistic outlook.

Six of one, half a dozen of the other

Two alternatives are essentially the same.

More Idioms

Break the ice

To do or say something to relieve tension or get conversation going in a social situation.

Cut to the chase

Skip ahead to the most important or exciting part of something.

The ball is in your court

It is now your turn to take action or make a decision.

Throw in the towel

To concede defeat or admit a struggle isn't worth continuing.