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English definition of “knock sb up”

knock sb up

(MAKE PREGNANT) slang phrasal verb with knock     /nɒk/ US  /nɑːk/ verb
to make a woman pregnant: You don't want to get knocked up by some guy you hardly know.Sexual intercourse
(Definition of knock sb up (MAKE PREGNANT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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