Fat-fume is the best name I've heard for it. It brings me back to when I first smelled it, as if it were only yesterday. I can almost smell it now.  I walked into the bathroom she had just left. That smell! It dawned on me that I was smelling the nether regions of my boss, and she wasn't even in the room anymore!  I can't believe fat people can know that they smell like that and be okay with it.