to use one's head
- idiom
- Informal
- You got to use your head, man.
Examples
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I need you to use your head!
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You can make better decisions if you use your head instead of acting impulsively.
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l could love a man who uses his head
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If you use your head while you play, baseball will be even more fun!
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Use your heads, lie low, and I promise no one will hurt you.
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And don't do anything stupid, we have to use our heads.
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You're not using your head, Raymond.
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Use your head, kid.
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If you want to solve this puzzle, you need to use your head and think critically.
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During the meeting, it's important to use your head and consider all the options.
Synonyms
To think carefully before you act or decide
Stay calm and think clearly in a difficult or dangerous situation
How Careful
Surface Forms
Morphology
use + one's + head
The phrase maps directly from 'use' + 'head' to the obvious inference 'use your brain / think', so a learner who knows both words can readily deduce the intended meaning. This body-part-for-cognition metaphor is common across many languages and follows a simple compositional pattern, making it immediately comprehensible to B1 learners.
Etymology
Use one's head comes from the simple picture of using your real head (your brain) to work out a problem or plan, like thinking something through in your mind. That's why it means 'to think carefully' and make good decisions.