2. Wearing showy, counterfeit ornaments; vulgarly pretentious; as, flash people; flash men or women; — applied especially to thieves, gamblers, and prostitutes that dress in a showy way and wear much cheap jewelry. Flash house, a house frequented by flash people, as thieves and whores; hence, a brothel. "A gang of footpads, reveling with their favorite beauties at a flash house." Macaulay.
FLASH
Flash, n.
Defn: Slang or cant of thieves and prostitutes.
FLASH
Flash, n. Etym: [OE. flasche, flaske; cf. OF. flache, F. flaque.]
1. A pool. [Prov. Eng.] Haliwell.
2. (Engineering)
Defn: A reservoir and sluiceway beside a navigable stream, just above a shoal, so that the stream may pour in water as boats pass, and thus bear them over the shoal. Flash wheel (Mech.), a paddle wheel made to revolve in a breast or curved water way, by which water is lifted from the lower to the higher level.
FLASHBOARD
Flash"board`, n.
Defn: A board placed temporarily upon a milldam, to raise the water in the pond above its usual level; a flushboard. [U.S.]
FLASH BOILER
Flash boiler.