Definition of brassing:
(n) :
(countable, uncountable) A metallic alloy of copper and zinc used in many industrial and plumbing applications.
(n) :
Fittings, utensils, or other items made of brass.
(n) :
(music) A class of wind instruments, usually made of metal (such as brass), that use vibrations of the player's lips to produce sound; a band or the section of an orchestra that features such instruments.
(n) :
Spent cartridge casings (usually made of brass): the part of the cartridge left over after bullets or shells have been fired.
(n) :
(uncountable) The color of brass.
(n) :
(military, business or other organizations, uncountable, used as a singular or plural noun, metonymic) High-ranking officers: the brass hats.