1. a baseball pitch that curves in the opposite direction from a curveball
Usage: baseball
2. a crazy or eccentric person
Usage: informal

1. crazy, zany, or unconventional
Usage: informal

Examples

• The pitcher threw a perfect screwball that fooled the batter completely.
• His screwball broke away from the right-handed hitter at the last second.
• My uncle is a real screwball who collects vintage toasters.
• She’s always been a bit of a screwball, but we love her anyway.
• The movie was a screwball comedy full of ridiculous situations.
• His screwball sense of humor kept everyone laughing.
• The screwball plot involved mistaken identities and talking animals.