1. Of or relating to humorous or satiric fiction describing, in a series of episodes, the adventures of a roguish hero. 2. Of or relating to rogues or scoundrels. More...
The picaro was first introduced in the Spanish novel, El Burlador de Sevilla. The "hero" [in this case, the "anti-hero"] is that legendary "love 'em and leave 'em" knave without a conscience, Don Juan.