curveball

Etymology

From curve + ball.

curveball means A forespin pitch thrown by rotating the index and middle fingers down and resulting in motion down "curve". Lexicurio rates it Sui generis — a strength score of 90 out of 100.

noun

A forespin pitch thrown by rotating the index and middle fingers down and resulting in motion down "curve"“He bit on a curveball in the dirt.”
An unexpected turn of events initiated by an opponent or chance; an exception or outlier.“Life has thrown him a few curveballs.”

verb

To throw a curveball.“Even though the haughty physics professors at the elite school ridiculed his declaration that he could make a baseball curve, Cummings just laughed it off and said, “I curveballed them to death,” according to Frederick Ivor-Campbell.”