- exhibitionist, flasher - someone with a compulsive desire to expose the genitals
--1 is a kind of compulsive
--1 has particulars: streakerDerived form: verb flash6 - flasher - an electrical device that automatically turns a lamp on and off (as for an advertising display)
--2 is a kind of electrical device
Derived form: verb flash8 - blinker, flasher - a light that flashes on and off; used as a signal or to send messages
--3 is a kind of light, light source
Derived forms: verb flash8, verb flash1