Meaning & use
don't have a cow
Last updated
Meaning
phraseidiominformalhumorous
Used to tell someone not to become very angry, upset, or excited about something, especially when the reaction seems too strong.
Grammar: Almost always used in the imperative as 'Don't have a cow', often followed by 'about something'.
Patterns
- don't have a cow
- don't have a cow about something
Don't have a cow—it's only a small scratch on the car.
My mom had a cow when she saw my report card.
Don't have a cow about the mess; I'll clean it up later.
Common combinations
- have a cow
- He had a cow when he found out we missed the flight.
- don't have a cow
- Don't have a cow, but I accidentally deleted your file.
- about something
- She had a cow about the broken window.
Synonyms and how they differ
- don't freak out
- More general and can mean 'don't panic' as well as 'don't get angry'; 'don't have a cow' is more humorous and specifically about an overreaction.
- calm down
- A direct instruction to become calm, not necessarily implying anger; 'don't have a cow' often implies the person is making a fuss.
- don't get so worked up
- Focuses on emotional excitement or anxiety rather than anger; 'don't have a cow' is more informal and jokey.
Practice
Choose the best way to complete the sentence: '___ have a cow—I only borrowed your pen!'
Choose one answer.
'Don't' is correct because the idiom is a negative imperative addressed to 'you'. 'Doesn't' is for third-person singular ('He doesn't'), 'Not' is not used alone to form a negative command, and 'No' cannot directly negate a verb in this way.
Make it your own
Write a sentence using “don't have a cow”, then check it and compare it with the examples above.