The sound comes from a Geico television commercial that first aired in 2013, in which a cheerful camel walks through an office asking coworkers about the day of the week. The ad quickly became a Wednesday ritual online, with people sharing the clip, quoting it and posting it every midweek. Its simple joke and upbeat delivery made it easy to reuse in memes, reaction videos and short social clips. More than a decade later, it remains a reliable shorthand for celebrating that the working week is halfway done.