shake off

verb

1. To remove (something attached to, on or clinging to an object) by shaking.“The archaeologists shook off the dust that had fallen from the roof, and promptly continued their work.”
2. To dissociate oneself from (an allegation or rumour).“Some rumors that the governor had smoked pot as a teenager were flying around, but he has finally managed to shake them off.”
3. To lose someone who is tracking you“The police are chasing us! Quick, turn into that side street! We've got to shake them off.”
4. To rid oneself of a malady or its symptoms“I just can't shake off this cold.”