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English definition of “knock sb up”

knock sb up

verb uk phrasal verb with knock   /nɒk/ us    /nɑːk/

(WAKE UP)

UK informal to wake someone up by knocking on the door of their house or bedroom: I'm sorry to have to knock you up in the middle of the night.

(MAKE PREGNANT)

slang to make a woman pregnant: You don't want to get knocked up by some guy you hardly know.
(Definition of knock sb up from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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Translations of “knock sb up”

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