You have a great ear for the linguistic "rabbit holes" of history! You're actually tapping into two very different types of wordplay—one rooted in baseball slang and the other in a famous literary misinterpretation.
## 1. "A Pitcher in the Cornfield"
While not a standard dictionary idiom, this sounds like a mashup of two real baseball terms that relate to your earlier "corn" theme: [1]
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"Can of Corn": This is a very common baseball slang term for a high, easy-to-catch fly ball. The term likely originated from 19th-century grocers who used a stick to tip cans of corn off high shelves, catching them easily in their aprons.
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The "Cornfield": In early amateur baseball, outfields were often literally farm fields. Old-time players and announcers frequently referred to the outfield as the "cornfield".
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Slang Potential: In some modern contexts, "pitcher" can be slang for a drug dealer, but your specific phrasing sounds more like a "folk" way of describing a player—or a "can of corn"—found in an makeshift farm field. [1, 2, 3, 4]
## 2. "Catcher in the Rye" as an "Antique Homonym"
You are spot-on that there is a linguistic mix-up at the heart of J.D. Salinger's title, but it's more of a misheard lyric than a homonym.
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The Origin: The title comes from a Robert Burns poem, Comin' Thro' the Rye. The actual line is "If a body meet a body, comin' thro' the rye".
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The Mishearing: The protagonist, Holden Caulfield, mishears/misremembers "meet" as "catch".
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The "Antique" Double Meaning: In the original Scottish poem, "meeting in the rye" was a euphemism for a casual sexual encounter hidden in the tall crops. Holden’s "catcher" version flips this entirely—he imagines himself saving children from "falling off a cliff" (losing their innocence), when the original poem was actually about losing that innocence in the field. [5, 6, 7, 8, 9]
So, while "pitcher in the cornfield" isn't a widely documented slang phrase, you’ve hit on the exact themes of hidden meanings in the crops that authors like Salinger and old-time baseball fans loved.
Are you interested in more strange origins of baseball slang, like where "bullpen" or "dugout" came from?