I believe it in parts.  I believe what she saw were some shitladies doing a cooldown walk while some ham shuffled and used bodily momentum for about 15-20 seconds trying to take selfies showing itself in the company of athletic, or at least slim, females. I have never, ever, in my life, not even once, seen something that would wear a size 20, that could keep up with the most fit women I know, let alone run circles around them. Elaborating, yes, I believe she saw a fatty in the presence of shitladies. She just lied about the details to fit her narrative.