Wiktionary
shake off
vb. 1 To remove (something attached to, on or clinging to an object) by shake. 2 To dissociate oneself from (an allegation or rumour). 3 To lose someone who is tracking you 4 To rid oneself of a malady or its symptoms
WordNet
shake off
v. get rid of; "I couldn't shake the car that was following me" [syn: shake, throw off, escape from]
get rid of; "he shed his image as a pushy boss"; "shed your clothes" [syn: shed, cast, cast off, throw, throw off, throw away, drop]
Usage examples of "shake off".
He passed the car without turning his head, and outside the station he stopped, snapped the umbrella shut and open, shut, open and shut, to shake off the water drops.