Gypsyism derived from snapper, bujarrón. The word has acquired many semantic nuances but in origin it meant what the RAE points out, effeminate, sissy, homosexual although perhaps with an affectionate nuance. It also has the sense that the companions of fool, pringao, loser, mindundi, pagafantas point out. . . , almost always used in juvenile slang around here as an insult.