flyblow verb 2noun 1forms 4 verb2 •To deposit eggs upon, as a blowfly does on flesh; to cause to be maggoty. •To taint or contaminate.I am unwilling to believe that he designs to play tricks, and to flyblow my words, to make others distaste them. — 1676 noun1 •An egg laid by a fly in animal flesh; a maggot hatched from such an egg. formsflyblew · flyblown · flyblowing · flyblows