shake somebody/something ↔ off phrasal verb ( see also ↑ shake )
1 . to get rid of an illness, problem etc:
I can’t seem to shake off this cold.
shake off your image/reputation as something
Outside investment has helped Sheridan to shake off its image as a depressed industrial town.
2 . to escape from someone who is chasing you:
I think we’ve shaken them off.