noun
baseball park etiquette; manners on the baseball field
Wasei-eigo term referring to proper behavior and etiquette expected of players, coaches, and spectators at a baseball field.
wasei-eigo (Japanese-coined English), from ground manner
少年野球では、グラウンドマナーを守ることが大切です。
In youth baseball, it's important to observe baseball park etiquette.
監督
The coach strictly taught the players manners on the baseball field.