I'm watching a Stat. Mech. lecture and in it, the lecturer mentions a "general probability distribution" but doesn't explain what exactly that is, yet in the context of the video, everything necessary to understand is understood. On some cursory google searches I'm finding several hits for a "general probability distribution" in papers and abstracts, but I am struggling to find a good definition. What is a good way to define this? Obviously the word "general" wasn't just thrown in there to confuse people, what does this mean? Does "for a general probability distribution" literally just mean that any of the related work/concepts is applicable to all probability distributions?