usage: get rid of; "I couldn't shake the car that was following me"
8. shake, change, alter, modify
usage: bring to a specified condition by or as if by shaking; "He was shaken from his dreams"; "shake the salt out of the salt shaker"
9. shake, gesticulate, gesture, motion
usage: shake (a body part) to communicate a greeting, feeling, or cognitive state; "shake one's head"; "She shook her finger at the naughty students"; "The old enemies shook hands"; "Don't shake your fist at me!"