According to historian Paul Dickson's exhaustive Dickson Baseball Dictionary, it's not just bases, but lingo that's being stolen in baseball-straight from our everyday lives and language.
How it's used: Game strategy where two or more players are used for a single position, depending on in-or pre-game match-ups with opposing pitchers.
How it got its name: Named after an army unit consisting of two or more squads, the term was first used in the 1940's when Yankees manager Casey Stengel began using the strategy extensively.
Can of Corn-
How it's used: A towering fly ball that allows a defensive player to stand underneath it and catch it easily.
How it got its name: Grocery store stock boys tipping cans of food off of store shelves and into their hands or apron, like a box.
How it's used: A cluster of power hitters, typically in order.
How it got its name: The wing of a prison where the most dangerous inmates are housed. First used in 1905, the '27 Yankees whose lineup included Babe Ruth and Lou Gehrig.
How it's used: Lefty One Out GuY or a left-handed reliever brought in to face a single left-handed batter.
How it got its name: Not a sabermetrics term, nor derived from spit. LOOGY was the brainchild of the NEW YORK TIMES sports writer Alan Schwartz in 2005
Ducks on the Pond-
How it's used: Baserunners on all three bases, ready to run on a hit.
How it got its name: Coined by Washington Senators broadcaster Arch McDonald in the 1930s because of the runners' similarities to sitting ducks: there for the taking.