No widely documented source has been attached to this short promotional phrase online, so it is best understood as a generic free trial line that creators have repurposed rather than a quote from a known show, film, or advert. Its appeal comes from how instantly recognisable subscription marketing sounds, with a friendly offer that promises something for nothing. That familiarity lets editors use it ironically, turning everyday spending, signups, and online deals into a quick joke without needing any context or explanation.