Rancid may refer to Rancid , an American punk band, and their self-titled releases: Rancid , the above group's self-titled debut EP Rancid , their first full-length album Rancid , another self-titled album Rancid , a 2004 Swedish film RANCID, network management software Rancid News, a punk zine Rancidification, the oxidation of fats, fatty acids, and edible oilsRancid