Funny Christmas Jokes The Best Fat Jokes. What do you call a fat psychic? A four chin teller. 7. What do you call two fat people having a chat? The best fat people jokes. Fat insults can be funny, but you have to be careful, insult the wrong person and you may have more on your hands than you can handle. Comedy Central Jokes - You. Previous Next. You'll be so fat after Thanksgiving the only thing stopping you from going to the gym is the doorframe.