Definition of curveball Curveball
We found 3 definitions of curveball from 2 different sources.
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What does curveball mean?
Wiktionary 
- curveball (Noun)
A forespin pitch thrown by rotating the index and middle fingers down and resulting in motion down "curve". - curveball (Noun)
An unexpected turn of events initiated by an opponent or chance.
OmegaWiki DictionaryOmegaWiki Dictionary Ω
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curveball
A baseball pitch resulting in motion downward and usually to the left when thrown with the right hand and to the right when thrown with the left hand.
