·noun A large male kangaroo.
II. Boomer ·noun One who works up a "boom".
III. Boomer ·noun One who, or that which, booms.
IV. Boomer ·noun A North American rodent, so named because it is said to make a booming noise. ·see Sewellel.
See boomah ...
Dictionary of Australasian Words Phrases and Usages by Edward E. Morris