Definitionenregional note: in BRIT, also use knock about
1. phrasal verb
If someone knocks you around or knocks you about, they hit or kick you several times. [mainly British, informal]
[V n P] ⇒ He lied to me constantly and started knocking me around.
2. phrasal verb
If someone knocks around or knocks about somewhere, they spend time there, experiencing different situations or just passing time.
[V P prep/adv] ⇒ ...reporters who knock around in troubled parts of the world.
[V P] ⇒ They knock around on weekends in grubby sweaters and pants.
[V P n] ⇒ I know nothing about him except that he knocked about South Africa for a while.
3. phrasal verb [only cont]
If someone or something is knocking around or knocking about, they are present in a particular place. [mainly British]
[V P] ⇒ There were a couple of decent kits knocking around, but this wasn't one of them!
[V P] ⇒ His paintings look as if they have been knocking around for centuries.
4. phrasal verb → knock If you knock around or knock about with someone, you spend your spare time with them, either because you are one of their friends or because you are their boyfriend or girlfriend. [mainly British]
[V P + with] ⇒ I used to knock about with all the lads from round where Mum lives.
[V P together] ⇒ They were knocking around together for about a year.
COBUILD Advanced English Dictionary. Copyright © HarperCollins Publishers