1. phrasal verb If you knock something up, you make it or build it very quickly, using whatever materials are available. [informal] knock together [V n P n (not pron)] ⇒ Could you possibly knock me up some scrambled eggs? [V P n (not pron)] ⇒ Any water-skiing enthusiast can knock up a pair of skis in a few hours. [Also V n P] 2. phrasal verb If you knock someone up, you knock on the door of their bedroom or of their house in the night or in the morning in order to wake them up. [British, informal] [V n P] ⇒ He went to knock Rob up at 4.30am. [Also V P n (not pron)] 3. phrasal verb [usu passive] → knock
If a woman is knocked up by a man, she is made pregnant by him. [mainly US, informal, rude] [get V-ed P] ⇒ When I got knocked up, the whole town knew it.
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