IPA: /ˈpɪtʃaʊt/
KK: /ˈpɪtʃˌaʊt/
In baseball, it refers to a pitch thrown high and away from the batter to help the catcher throw out a runner. In football, it is a lateral pass from one back to another behind the line of scrimmage.
The pitcher threw a pitchout to give the catcher a better chance to catch the runner stealing.
Pitchout → The word is formed from "pitch" (from Old English *piccean*, meaning to throw or toss) and "out" (meaning away from the inside). The term "pitchout" refers to a throw made away from the inside, often used in baseball to describe a specific type of pitch.
Think of 'throwing' ('pitch') something 'away' ('out') — that's why a pitchout is a throw made away from the inside.