Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “do someone in”

do someone in

(TIRE) infml phrasal verb with do    /du/ verb (present tense does  /dʌz, dəz/, past tense did  /dɪd/, past participle done  /dʌn/)
to tire someone: That five-mile hike did me in.
(Definition of do someone in (TIRE) from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of do someone in

Word of the Day

beneficiary

a person or group who receives money, advantages, etc. as a result of something else

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