Why do people fart?
For the same reason you expel other waste elements in your body - liquid, solids and gas. All part of the digestive process. Now....pull my finger.....
They let it out so they don't explode.
to let gases out
when the gases come out it makes your butt cheeks flap and vibrate together and that's where the farting noise xomes from xD
I thought butt cheeks only flap in the colonoscopy preparation process.