The term BE HOPPING MAD is an idiom which means to be extremely angry. The crossword solutions for this term are BOIL (4 letters), LEAP (4 letters), IRED (4 letters), IRE (3 letters), IRATE (5 letters), LIVID (5 letters), and FUMES (5 letters). All of these words are related to anger, with BOIL and FUMES being related to heat and intensity, LEAP and IRED being related to suddenness, IRE and IRATE being related to rage, and LIVID being related to a deep-seated anger. Together, these words paint a picture of someone who is very angry and out of control.