To agitate.
A western custom, to shake hands. Thought to come from heraldic times, when shaking hands would show there were no hidden daggers up each others' sleeves.
Short for milkshake or milk shake. A combination of ice cream, milk, sugar and any other desired flavoring. Contrasted to malt or malted, which is a milkshake with malt added.
A style of roofing or paneling, involving rough-hewn slabs or wedges of wood laid in overlapping layers, with the grain oriented vertically. Some regions with high wildfire risk will recommend against shake roofs or walls.
In Tom Clancy's Sum of all Fears, a 'shake' is defined as a unit of time approximately 10 nanoseconds; named after the biblical passage that says that armageddon will come in "three shakes of a lamb's tail." Thirty nanoseconds are required for a nuclear weapon to get to critical mass.