Assuming you didn't spit it out, your throat gradually brings the food down to your stomach. Once it reaches the stomach, your food ends up digested with hydrochloric acid and an enzyme, pepsin, meant to break proteins down. Add in some bile from the liver to dissolve the fats, too. read more
But to the answer; chewing, acid, muscles, enzymes and time reduces that yummy food into poop, your bowel compress into a firm log, the color is because of the bilirubin made by your liver to aid in the digestion, the smell is so we don’t eat it. read more
Other than water, your poo also contains solid material. A lot of it is bacteria that your body uses to help digest the food. It also contains fats and other material that your body is getting rid of. The poo also contains 'fibre'. Fibre helps the poo to travel easily through your body. read more
Increased bowel movements as your body prepares to digest your new meal, if I remember correctly. That's not your new meal trying to get out, it's an old one. read more