Since at least 1725 screw has meant to copulate. Not having your head screwed on right has been an expression since at least 1821. The screwball as a pitch dates back to 1866. Since 1900 it has meant to cheat or defraud. Screw-up as a person began during 1933. “To screw up” dates from 1942. Finally the screwdriver cocktail traces its roots to 1956.
The six great simple machines are the screw, the inclined plane, the lever, the pulley, the wedge, and the wheel and axle.
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