knock off = stop work
- He knocks off at four every day except Saturdays. On Saturdays they knock off at two.
- We were very tired, so we knocked off work early.
- We knocked off at two and had lunch.
- I usually knock off at four. Come and pick me up around then.
- All staff knocks off for lunch for half an hour.
- I would like to knock off early today. I am expecting guests.
- Banks knock off early on Fridays.