McChild 

also called McKid, name given to the current crop of children born from about 1990 to the present, of which a large percentage are overweight or obese due to eating fast food (hence the name) and other junk food and not getting much exercise, especially due to excessive video game playing

Parks are often empty on the weekends due to McChildren staying at home and playing video games.
A typical McChild's parents will make up an excuse to keep their child out of PE classes.

McChild by New English December 9, 2008

McChild Molestor 

This is a big mac sandwich from Mcdonalds but instead of those wimpy meat patties, they throw on the meat patties from a quarter pounder

"Dude the meat patties on this McChild Molestor are so much bigger than the ones on a regular big mac. Badass!"

McChild Molestor by S.O.L.O. October 27, 2009

McChillin'

chilling to an extreme degree

Friend: Yo you took 9 shots you good?
Other Friend: Yeah don't worry I'm mcchillin'

McChillin' by Huge Drew November 10, 2021

McChildMolester 

A mcdouble topped with ice cream, Mcflurry candies, a cherry. Used to lure children off the streets in spite of it's horrendous taste. Cost about $2.50.

Mcdonalds employee: I just sold 5 mcChildMolesters to that guy in the trenchcoat.
Other employee: damn that's 5 more obese children gone missing.

McChildMolester by Protector of obese children July 30, 2011

King Killa McChilla 

The height of supremacy,expressed in a rythmic, flowing way.

The ultimate of cool.

Have you seen the magic beer bottle trick, what that girl can do with a beer bottle is king killa mcchilla.

King Killa McChilla by The Oxford Dictionare June 14, 2005

mcchill

One is very talented in the art of chilling

That guy over there is mcchill bro.

mcchill by mcchill March 3, 2016

mcchillin 

Mcchillin is when a bunch of teenagers usually loiter or hang out at a McDonald's usually for long periods of time or on a daily basis

Bryan: Hey, what are you doing after school?
Jake: I'm Mcchillin with Stephanie and Mike.

mcchillin by littlemermaidrocks January 22, 2010