potsy
/ˈpɒtsi/(also potsie) US informal
noun
1In New York City and other eastern U.S. cities: a children's game similar to hopscotch. Also: the crushed tin can (or occasionally a rock or stone) used in the game.
2The badge worn by a police officer or firefighter.
Origin
Early 20th century; earliest use found in Pedagogical Seminary. From pot + -sy.