Also the 8. The money ball (game ball or frame ball ) in a game of eight-ball . It is the last ball that must be pocketed, after the suit of seven object balls belonging to the player shooting for the 8 (pocketing the 8 ball early is a loss of game —unless done on the break , in most rules variants). It is usually black in colour with the numeral "8" in a white circle. In other games, such as nine-ball and straight pool , the 8 is simply an object ball . Due to its coloring and regular use as a money ball , it is commonly used as a symbol in popular culture.