Johnny the Homicidal Maniac means in slang: Jhonen Vaquez created a comic series of 7 issues that follows the story of Johnny, a man who is mentally unstable and tortured. Johnny C. Nny now talks briefly to his inner voice reflected in inanimate items, and then terrorizes his neighbor. Most importantly, he kills people. There are many people. Although most of his victims appear to have suffered a terrible fate, Nny loses his concentration and begins to kill for petty reasons. Let me not ruin it for you. You can read it yourself. It is funny, but it is dark. There are ironic puns, and, most importantly, satire. (in Slang Dictionary, added by Cyrus Giles)