From Longman Dictionary of Contemporary Englishhopping madhopping madinformalANGRY very angry SYN furious → hop
Examples from the Corpus
hopping mad• Bunker had received the message from a convener at one of the Midlands plants, who was also hopping mad.• Christmas dinner ruined and so on - she's hopping mad.• Just as well for him, because she was hopping mad.• No wonder, then, that several institutions are hopping mad.• Trainer Michael O'Leary was also hopping mad.• Well, I've just been round the tents and Lyons are hopping mad! 