Note: I’ll treat "upd" as shorthand for "update" and assume the topic is an incident or trend involving a "dad and son" video or account on MyVidster (a bookmarking/video-sharing site). If you meant something else, say so and I’ll adjust.
Users can upload their own videos or bookmark videos from other sites. dad son myvidster upd
is a social video bookmarking site, often used to save and share links from other platforms. It has historically had issues with hosting or linking to unmoderated user-generated content, including some that violates terms of service. Note: I’ll treat "upd" as shorthand for "update"