The word "POG" has a few synonyms that can be used interchangeably. One synonym for "POG" is milk cap, which refers to the small, round cardboard discs used in the game. Another synonym is tazos, a similar game popularized by Taco Bell in the late 1990s. Additionally, some people may refer to "POG" as flip, slammer or pogman, depending on their region and personal preference. Despite the variety of names, the game remains a nostalgic favorite for many who grew up playing it in the 90s.