What is Bool?

Bool definition and meaning on Dictionary terms:
a person or thing that booms.
a person who settles in areas or towns that are booming.
Informal. baby boomer.
Informal. a wandering or migratory worker; hobo.
a period of sudden and decisive economic growth: July was a boomer for the retail trade.
Informal. a person, fad, etc., that enjoys a brief popularity or financial success: A new group of boomers made this season’s hit record.

an enthusiastic supporter; booster: The boomers tell us our town can double its size.
Australian. a fully grown male kangaroo, especially a large one.