>>63105408 Anon probably means her sitting (ass not being very wide but fat on back+thighs usually haging over) and how often she wears oversized clothes.
Unlike with a lot of people, her muscle and fat distribution ends up far less sexy when she normally sits compared to sitting on floor with knees up or standing. She even commented on it some two years ago while munching on 3rd serving of a ready to make takoyaki box.