This appears to be a specific series title or a user-defined tag. Without more context, it acts as a unique identifier for a particular set of uploads or a niche production. Why you might be seeing this

If you are trying to track down this specific content or understand what these terms mean, 1. DoodStream and PoopHD

These are third-party video hosting platforms. They are popular for hosting user-generated content because they offer easy upload tools and embedding options. If you see these names in a keyword string, it usually indicates that the video is hosted on those specific servers. 2. "Fixed" and "100 Min"

This almost certainly refers to the runtime of the video (1 hour and 40 minutes).