miff I. \ˈmif\noun (-s) Etymology: origin unknown 1.: a fit of ill humor or bad temper 2.: a petty or trivial quarrel or argument II. transitive verb (-ed/-ing/-s) : to put into an ill humor : make peevish : offend, displease < miffed by this refutation of his diagnosis — F.G.Slaughter > < miffed a few … musical sophisticates — Time >