noon-to-cocktail hour curve
n.— «Zito was dominant. His noon-to-cocktail-hour curve—scouts slang for a pitch that breaks downward like hands on a clock moving from 12 to 6—gave the Dodgers fits.» —“Zito Shows L.A. to Its Seat” by Steve Henson in Oakland, California Los Angeles Times June 17, 2006. (source: Double-Tongued Dictionary)