To save this word, you'll need to log in.
Definition of go off at half cock
British, informal
: to do or say something without preparing for it or thinking about it
Before you go off at half- cock, try listening to the explanation.
Comments on go off at half cock
What made you want to look up go off at half cock? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Words for Summer: A Quiz
- Which of the following words means “of or relating to summer”?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
- Words for Summer: A Quiz
Test your knowledge of words related to the season of longer days and vacations.
Take the quiz - A More Exception(al) Quiz
Which of these things doesn't belong?
Take the quiz - Spell It
Can you spell these 10 commonly misspelled words?
Take the quiz - Dictionary Devil
The dictionary has been scrambled—can you put it back together?
Play the game
Share go off at half cock