Look: I'm not judging fat people, okay? Some very cool people also happen to be fat. It doesn't make them any less cool. So DON'T use this rule of thumb to judge other people. Only use it to judge yourself.
Here's the rule of thumb.
Get buck naked, like in the shower. Stand up straight. Now bend your neck and tip your head down, so your chin is touching your chest. Look straight down.
CHICKS: If your belly sticks out further than your tits, you're too fat.
DUDES: If you can't see your (relaxed) dick cuz your belly is in the way, you're too fat.
This works for all body types, and all sizes and shapes. All of the exceptions you can think of? They don't matter. If this rule of thumb tells you you're too fat, and you disagree, then go try the Body Mass Index (BMI) Calculator at http://www.bmi-calculator.net/. It'll tell you the same thing - every time.
