plural of flash house

(obsolete) A brothel.

(photography) A powder that burns with a very rapid flash when ignited; used in pyrotechnics and early flash photography.

(UK, informal) pertaining to a scam where a motorist flashes their headlights to indicate to another driver to proceed against normal give-way rules, then runs in to them and sues for damages.

plural of flash grenade

plural of flash-bang

plural of eyebrow flash

A brief raising of the eyebrows as an unconscious social signal when approaching another person to interact with them.

A variety of water-tube boiler, used chiefly in steam automobiles, consisting of a nest of strong tubes with very little water space, kept nearly red hot so that the water as it trickles drop by drop into the tubes is immediately flashed into steam and superheated.

A gas burner with a device for lighting by an electric spark.