bug
n.— «The numbers game (known also as policy, clearing house, the bug, butter and eggs and other names) operates every day except Sunday throughout the year, players wagering anything from a penny upward on a three-digit number (000-999).» —“Lotteries Yesterday, Today, and Tomorrow” by Ernest E. Blanche Annals of the American Academy of Political and Social Science May, 1950. (source: Double-Tongued Dictionary)