McShat 

The shit that comes out of your ass after eating McDonald's.

Explative representing the stuff that comes out of your butthole after eating McDonald's/

"Oh Shit, I had some McShat yesterday. I fucking shat all over the ground. I made a fuckin moron out of myself infront of my fiance and my family. I fucking lost my job and prospective life partner."FUCK!" "Goddamn you McShat"!

"After spending a lovely afternoon at Mcdonalds with my family, I felt something penetrating out of my ass; it was a McShat.

"i just mcshat myself"

"Moments after finishing my delicious double cheeseburger meal, i heard my stomach rumbling, maybe it was asking me what i just put in my body. Before i knew it i felt an uncontrolable rush of greasy, cheesy and bubbly McShat putting pressure on my rectum and forcing it's way out of my ass"

"Hey dude, wanna get some McShat after lecture today?"

McShat by O'Shriver March 28, 2010

Kat McSnatch 

A now-famous YouTuber who started off with her video (that soon went viral!) of a song she wrote called, "You Are a Cunt".

Kat McSnatch wrote & performed songs like, "You Are a Cunt", "I Don't Like You", and, "Don't Worry, Be Ugly".

Kat McSnatch by Telephony August 22, 2014

Going for a McShit 

When you go into McDonalds for the sole purpose of using the bathroom.

Please note: If challenged by the spotty staff member, then your declaration that you will buy food afterwards is a McShit with Lies

I'm going for a McShit

Going for a McShit by Snake July 9, 2004

McShit 

Usually 30 minutes after the complete ingestion of a McDonald's meal one is faced with McCramps. These cramps are just like regular stomach pains, but differ in the fact that they are brought on by eating McDonalds.

Usually 10-15 minutes after the McCramps/McPains occur one will get the McFarts. These are generally farts with an odor similar to that of death. They reak and reak and generally cause people with you during that time to leave.

Finally, the McCramps get so bad that you run to the washroom and begin to expell feces. These feces are refered to as McShits. They are usually consist of diharea or some liquid and some solid parts. They also have an odor of death, and can cause one to pass out if they McShit too long. Generally, after a good round of McShits, the Large Intestine feels as if it has had an enema, and is generally happy until it one eats McDonald's again.

After the McShits subside you are done with the cycle, or your body may still be undergoing the the "McShit" process, and one will continue to McFart until the McCramps go away. That is the signal to enter society once again.

Matt: Omg Dude McDonald's is so good!
Sasa: I know, but it'll be bad later man, trust me...
Matt: How do you figure?
Sasa: The McShits bro, you'll see.

----- 30 Mins Later -----

Matt: Oh dude this is killing me! Ahh, what is this sensation?
Sasa: Thats the McCramps man... I told you!

McShit by xSasax February 12, 2007

McShitmypants 

The feeling one experiences after enjoying a McOrgy sandwich

Yo man, I feel like imma gonna McShitmypants after eating that greasy ass fuck

McShitmypants by lkasdjfashdflajdf April 21, 2010

McShit with lies

Using the toilets in McDonalds having given the assurance to the staff that you'll buy something.

"....yeah, I'm chocking on a shunky. My mate's getting the food in just now..."

McShit with lies by McPhail April 19, 2005

McShittles 

Gastronomical distress caused by fast food.

Man, after that late nite Taco Bell burrito run, I had a nasty case of the McShittles this morning!

McShittles by Mark Trial January 10, 2008