No other bodily function is as funny as flatulence. You might think that fart jokes are the lowest level of immature, but we dare you not to laugh when somebody toots a perfect note as if they have a trumpet shoved up their behind. And if you're not a fan of the classical brass instrument' tune, fart sounds can vary from an ultrasound only audible to dogs to something that you might hear in a demolition area, so there's a fart for everyone's taste.