flasher

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun someone with a compulsive desire to expose the genitals
noun an electrical device that automatically turns a lamp on and off (as for an advertising display)
noun a light that flashes on and off; used as a signal or to send messages

From flash + -er.

‘Of course,’ replied Wilkins Flasher, Esquire. — The Pickwick Papers, Charles Dickens
"Kin we have yo' pocket flasher, Mist' Sherry?" he asked. — The Camp Fire Girls Solve a Mystery; Or, The Christmas Adventure at Carver House, Hildegard G. Frey
Signals were made to that town by a Naval searchlight fitted "with a flasher. — History of the War in South Africa 1899-1902 v. 1 (of 4) : Compiled by Direction of His Majesty's Government, Great Britain. War Office

exhibitionist

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