Dictionary
gad•fly
Pronunciation: (gad'flī"), [key]—
n.,
—pl. -flies.
1. any of various flies, as a stable fly or warble fly, that bite or annoy domestic animals.
2. a person who persistently annoys or provokes others with criticism, schemes, ideas, demands, requests, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.