Definitions

1. noun

a person who behaves in a wildly unpredictable or eccentric manner.

“The company’s new marketing manager was a bit of a screwball, but she managed to get the product noticed.”

2. noun

a pitcher in baseball who throws the ball in a way that makes it curve or drop in a way that is difficult to hit.

“The screwball pitcher threw a strike to end the inning.”

3. adjective

extremely wild or unpredictable; eccentric.

“The screwball comedy was a hit at the film festival.”