also: ラッキー・ゾーン
noun
lucky zone (baseball)
A baseball term for the area between the regular outfield wall and a lower home-run fence set up at a shorter distance from home plate. Wasei-eigo; not used in English baseball terminology.
wasei-eigo (Japanese-coined English), from lucky zone
甲子園球場にはかつてラッキーゾーンが設置されていた。
Koshien Stadium once had a lucky zone installed.
Wasei-eigo from English 'lucky' and 'zone'. The exact origin is uncertain, but it was coined in Japanese baseball contexts.