Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “be off your head”

be off your head

informal
to be crazy: You must be off your head going out in this weather!Of unsound mindStupid and sillyDrunkenness and sobriety to not be in control of your behaviour because you have drunk too much alcohol or taken drugs: Hannah was off her head as usual.Drunkenness and sobrietyDrugs - general wordsSpecific types of drug
(Definition of be off your head from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Browse related topics

You are looking at an entry to do with Drugs - general words, but you might be interested in these topics from the Drugs topic area:

Translations of “be off your head”

Word of the Day

warm-up

something that you do to prepare yourself for an activity, especially gentle exercises before a physical activity

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More