The title combines mentiroso, the Spanish and Portuguese word for liar, with references to Telegram and Camaro, and the clip circulates under that name on soundboards. Its exact original recording and speaker are not documented, so it is known mainly through sharing in messaging apps and reposts rather than a film, song or show. That loose origin is part of its appeal, as users apply it to any boast about cars, money or status. It remains used because the accusation is instantly understood even out of context.