'shake off' definitions:

Definition of 'shake off'

From: WordNet
verb
Get rid of; "I couldn't shake the car that was following me" [syn: shake, shake off, throw off, escape from]
verb
Get rid of; "he shed his image as a pushy boss"; "shed your clothes" [syn: shed, cast, cast off, shake off, throw, throw off, throw away, drop]

Synonyms of 'shake off'

From: Moby Thesaurus