knock up

verb

1. Also: knock together. informal,  to assemble quickly; improvise

   to knock up a set of shelves

2. informal,  to waken; rouse

   to knock someone up early

3. slang,  to make pregnant

4. informal,  to exhaust

   the heavy work knocked him up

5. cricket to score (runs)

6. (intr) tennis squash badminton to practise or hit the ball about informally, esp before a match

noun

1. a practice session at tennis, squash, or a similar game

Idioms and Phrases

Make pregnant, as in The young girl said she was afraid of getting knocked up . [ Slang ; early 1800s]

Injure or damage, as in This coffee table got all knocked up in the moving van .