amateur baseball; sandlot baseball
Refers to informal, recreational baseball played by amateurs, often on a grassy field or empty lot. The term carries a casual, grassroots feel.
On weekends I enjoy playing sandlot baseball with my friends.
We formed an amateur baseball team and practice at the neighborhood park.
Compound of 草 (くさ, 'grass') and 野球 (やきゅう, 'baseball'). The 草 prefix evokes the image of playing on a grassy field or empty lot, emphasizing the informal, amateur nature of the game.