Treacherous person as bad dog; villain, scoundrel, ruin. It is also a pack of dogs, and figuratively, a boisterous Group (such as children playing). Comes from the latin can, is (dog), and the Italian canaglia (Pack), which became the French as canaille and from there to the Spanish. In Argentina is the nickname of the Rosario Central football club supporters; his rival completo Newell Old Boys of Rosario was it when they refused to play a friendly match in aid of the leper colony of the Carrasco Hospital. In response, the Central called them lepers.
