gadfly
UK /ˈɡædflaɪ/ · US /ˈɡædˌflaɪ/ noun
Forms gadflies
- noun Any dipterous (“two-winged”) insect or fly of the family Oestridae (commonly known as a bot fly) or Tabanidae (horse fly), noted for irritating animals by buzzing about them, and biting them to suck their blood; a gadbee.
- noun A person or thing that irritates or instigates.
- noun (specifically) A person who upsets the status quo by posing novel or upsetting questions, or attempts to stimulate innovation by being an irritant.
- noun Synonym of gadabout (“a person who restlessly moves from place to place, seeking amusement or the companionship of others”).
- noun (derogatory, slang) A person who takes without giving back; a bloodsucker. “He’s a regular gadfly and takes advantage of his friend’s generosity.”
Synonyms
warble fly stoat-fly stout eccentric free spirit heteroclite deviant deviate individualist maverick misfit nonconformist offbeat social butterfly gadabout bloodsucker bludger bummer freeloader free rider pest blighter cuss pesterer
Etymology
From gad (“sharp point, spike; (dialectal) sharp-pointed rod for driving cattle, horses, etc., goad”) + fly, in the sense of a fly which irritates cattle, etc., by biting them, similar to the prodding of a goad. Gad is derived from Middle English gad, gadde (“metal spike with a sharp point; stick with a sharp point for driving animals, goad; metal bar or rod, ingot; (by extension) lump of material; metal rod for measuring land; (by extension) unit of linear measure equal to about 10 to 16 feet”), borrowed from Old Norse gaddr (“spike; goad”), from Proto-Germanic *gazdaz (“spike; goad”), further etymology uncertain. Displaced native Old English bēaw.
Sense 2.1.1 (“person who upsets the status quo”) may allude to the Apology by the Greek philosopher Plato (428/427 or 424/423 – 348/347 B.C.E.), where he describes Socrates (c. 470 – 399 B.C.E.) acting as a goad to the Athenian political scene like a gadfly (Ancient Greek μῠ́ωψ (mŭ́ōps)) arousing a sluggish horse.
Webster’s 1913
Etymology [Gad + fly.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “gadfly”, CC BY-SA 4.0. Details