Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “knock sb off”

knock sb off

(HAVE SEX) offensive old-fashioned phrasal verb with knock     /nɒk/ US  /nɑːk/ verb
to have sex with someoneSexual intercourse
(Definition of knock sb off (HAVE SEX) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of knock sb off

Translations of “knock sb off”

Word of the Day


the skill or activity of preparing and cooking food

Word of the Day


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