While I couldn't find specific information on the exact keyword, it's possible that it refers to a type of home video content that originated in General Villegas, a town or city in Argentina, and features a person or individuals using the colloquial term "pendeja." The content might be a type of vlog, a personal diary-style video, or a more scripted production.
: The case deeply divided the local community, with some residents initially mobilizing to support the accused men. video casero de pendeja de general villegas link