A person who is afflicted with an irrational fear of firearms.
Dianne Feinstein and Chuck Schumer are classic examples of hoplophobes, whose blatant disregard for the U.S. Constitution would make our Founding Fathers roll in their collective graves.
An irrational fear of weapons, generally guns, usually occuring as a result of a liberal upbringing or the fact that the person is just a wimp in general. Rather than deal with the fear said hoplophobe will assign human characteristics to a weapon ie "guns are evil" or "guns kill" to justify the fear rather than deal with the core problem of being a sissy.
Due to his aversion to weapons, all the the police could do for young Seth the hoplophobe was chalk his cold dead body out on the floor as he had no defense for the thug that broke into his one bedroom apartment in San Fran, the policed noted the irony in the fact that the killer had scored three hits in the "O" portion of Seth's OBAMA 08 T-shirt.