n. (pl. -flies) 1 a cattle-biting fly, esp. a warble fly, horsefly, or bot-fly. 2 an irritating or harassing person. [obs. gad goad, spike f. ON gaddr, rel. to YARD(1)]
GADFLY
Meaning of GADFLY in English
English main colloquial, spoken dictionary. Английский основной разговорный словарь. 2012