Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “cock sth up”

cock sth up

UK slang phrasal verb with cock     /kɒk/ US  /kɑːk/ verb
to do something wrong or badly: David cocked up the arrangements and we ended up missing the reception. "How did the exam go?" "Terrible - I panicked and really cocked it up."Failing and doing badly
(Definition of cock sth up from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of cock sth up

Translations of “cock sth up”

Word of the Day

altruistic

showing a wish to help or bring advantages to others, even if it results in disadvantage for yourself

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