shave rule
n.— «Add the fact that curveballs aren’t allowed, with a few exceptions for more developed pitchers, who fit what is called the shave rule, meaning that a youngster is generally physically developed enough to safely throw curves when they begin to shave, and there’s a declined risk of the injury.» —“Ted Williams Baseball League finds way around Little League Elbow” by WIlliam Wassersug Wicked Local (Cohasset, Massachusetts) Mar. 27, 2009. (source: Double-Tongued Dictionary)
Further reading
Tom Harris from Bluebell, Pennsylvania, wonders: In baseball, when a batter is said to take a ball, what exactly does take mean in that context? Batters have been advised to take a ball since the mid-1850s, when rule changes established the modern...
It’s the ultimate road trip: A father and son retrace the journey of Odysseus and find a way to navigate their relationship. Plus, the story behind the phrase a flash in the pan: It has nothing to do with cooking or gold mining. Also, what’s a...