Entering a fast food restaurant with no intention of buying food, you're just going to the bog. If challenged by a pimply staff member, your declaration to them that you'll buy their food afterwards is known as aMcShit with Lies.

The bad stomachache and diarrhea usually associated with eating too much Mcdonalds

Using a fast food restaurant's facilities to relieve yourself when nature calls and not buying anything before you leave.

The result of eating fast food and having to take a large and/or painful crap.

The act of going into a restaurant (particularly a fast food restaurant) in order to use their toilet facilities, with no intention with buying anything.

When you go into a fast food restaurant just to use the toilets, not to buy the food.

The outcome of eating Mcdonalds the previous day and you feel a very strong bowel movement because of it. Usually occurs from eating any dairy, chicken, or beef products on the menu.