if you give something a shake, you move it up and down or from side to side:
Give the bottle a good shake before use.
He refused with a shake of the head (=a movement of the head from side to side to mean no).
a cold drink made from milk, ice cream, and fruit or chocolate [= milkshake]:
a strawberry shake
nervous shaking of your body caused by illness, fear, too much alcohol, not getting a drug you are dependent on etc:
If I don't smoke, I get the shakes.
I'll be back in two shakes.
not very skilful, or not very good:
He's no great shakes as a singer.
to get or give someone fair treatment