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.
I'm just off for a McShit.
by Apple martini2 December 30, 2009
Get the McShit mug.
The bad stomachache and diarrhea usually associated with eating too much Mcdonalds
Oh man those 3 Big Macs gave me a bad case of the McShits.
by Johnny W. September 1, 2006
Get the McShits mug.
The result of eating fast food and having to take a large and/or painful crap.
Joe: Man, Todd is taking a McShit again, he needs to lay off the McDonald's.

Andrew: Ew that's gross.
by JoeyKid July 18, 2008
Get the McShit mug.
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.
Assistant: "Sorry, toilets are for paying customers only"

You: "Well, I want a McShit with lies"
by hippyman December 18, 2007
Get the McShit mug.
When you go into a fast food restaurant just to use the toilets, not to buy the food.
by JUICEBOXXX July 27, 2007
Get the McShit mug.
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.
Guy #1: "Oh man I got a severe case of the Mcshits after eating a Mcchicken and Mcdouble from Mcdonalds last night"

Guy#2: "I advise you to use the Mcbathroom"
by baseballguy50 August 7, 2012
Get the Mcshits mug.