McStfu 

1. When driving through the McDonalds drivethrough, when they ask you what you want say A McStfu.

2. Something To say to somebody very annoying.

1.
Drivethrough Lady: What can I get you today?
Man: Oh I'll just get a McStfu

2.
Nerd: Hey Morse!
Morse: McStfu Before i kill j00.

McStfu by Jake Morse January 9, 2009

Sausage Egg McStuffin 

Also see happy meal.

Whilst receiving deep-throat fellatio from a woman, one may stuff one's ballsack into the woman's mouth at the same time, the sheer volume of which causes her lips and cheeks to stretch wide open (as though she's making a big happy smile, hence it is sometimes referred to as a happy meal.)

Man, look at the mouf on that chick... I'll bet she'd love a nice Sausage Egg McStuffin for breakfast.

Sausage Egg McStuffin by al-stud December 26, 2009

cap mcstuffins 

when you are capping so hard cap is not enough

Girl: “You’re the only guy I talk to”
*Sees her snapscore is 2 million*
Boy: “Yeah that’s cap mcstuffins”

cap mcstuffins by capmcstuffins June 7, 2020

MCStudent 

The campus-wide wi-fi network at Merrimack College with speeds slower than dial up.

Dude, you gotta watch this youtube video!
Alright, hand me my ethernet cord so I can buffer, I'm on MCStudent.

MCStudent by mackproblems October 25, 2011

egg mcstuffins 

When you keep jamming shit into an object and it reaches max capacity.

Yo you see that trash barrel that thing is egg mcstuffins.

egg mcstuffins by Cuck Fin July 15, 2016

Mcstuffed 

Where you know you aren't full because you didn't eat to your capacity, but you ate McDonald's, so you feel absolutely horrible and sick to your stomach.

Today i had the urge for something light that could hold me over for a few hours, so i went to McDonald's and bought a burger off the dollar menu. After eating this i was so Mcstuffed i couldn't even have dinner...

Mcstuffed by v-tech June 16, 2009

mcstuff

What you do when you get a big mac, supersized fries, and a extra large malt at McDomnalds

Yo I mcstuffed myself today at mcdonalds

mcstuff by Lil Duff 2008 October 1, 2008