Definition of knock someone up in English:

knock someone up

phrasal verb

  • 1British Wake or attract the attention of someone by knocking at their door.

    • ‘One Lib Dem peer was pounding the pavements all day, knocking up voters.’
    • ‘Eventually, after having no luck at all with the key, I had to go next door and knock them up.’
    • ‘Some were formal duties, such as inspecting weights and measures or inspecting bridges, others were informal, such as knocking people up early in the morning for work.’
    • ‘I'll knock you up at five to seven and I'd like you downstairs for breakfast at seven sharp.’
    wake, wake up, waken, awaken, call, rouse, arouse, get out of bed, get up
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  • 2informal Make a woman pregnant.

    make pregnant, impregnate, inseminate
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