/booh"meuhr/ , n.
1. a person or thing that booms.
2. a person who settles in areas or towns that are booming.
3. Informal. See baby boomer .
4. Informal. a wandering or migratory worker; hobo.
5. a period of sudden and decisive economic growth: July was a boomer for the retail trade.
6. Informal. a person, fad, etc., that enjoys a brief popularity or financial success: A new group of boomers made this season's hit record.
7. an enthusiastic supporter; booster: The boomers tell us our town can double its size.
8. Australian. a fully grown male kangaroo, esp. a large one.
[ 1820-30; BOOM 1 + -ER 1 ]