Often involves vigorous and sudden actions to physically dislodge something. The dog shook off the sleet after the storm.
Pro Tip 2/3
Literal Cleaning
Used literally when trying to clean small particles off something by moving it rapidly. After the hike, I had to shake off the leaves stuck to my coat.
Pro Tip 3/3
Immediate Effect
Implies the action of shaking off is quick and immediate, without delay. I jumped into the boat and shook off the cold lake water.