Pointing out an obese person and then arguing with the person you're with if that isn't the fattest person you've ever seen. The other person has always seen someone more fat. You don't always have to be making fun of this person. You can be feeling sorry for them. This is a favorite game with anorexics and people who are fatasses themselves.
Every time we leave the house, my man likes to go fat watching. If I'm not there, he likes to tell me on the phone how fat someone was he saw. Fat Watching is different than confronting someone about their weight or teasing them until they develop an eating disorder. It is strictly a third party game and almost as fun as looking for ghetto booty.