McToss 

After ordering a beverage of any type at McDonald's, you throw it through or at the drive-thru window as you pull away. Extremely obnoxious and unpleasant.

I just McTossed my McFlurry that bitch at the one across the street from CVS. She'd been fucking up my order recently.

McToss by ChallahBack February 23, 2009

McBoss 

The combination of 3 dollar menu items from McDonalds to make 1 ultimate sandwich. The 3 items include a McChicken, a McDouble, and value fries.

How To Make:
Lay the fries in a row on both sides of the chicken in the McChicken. Next you split the McDouble in half from the patties. You then stick the whole McChiken (which now has fries on it) inbetween the two patties.

Order From Top to Bottom:
Bun
Patty
Bun
Fries
Chicken
Fries
Bun
Patty
Bun

In short it is a McDank with value fries on both sides of the chicken.

I used to eat McDanks, until I tried a McBoss.

McBoss by Dustin the Ninja September 5, 2011

Mcboss 

Mcboss can also stand for Minecraft boss.

Wow, that guy is a Mcboss64

Mcboss by Mcboss64 August 30, 2017

McBoss 

A supervisor/boss of a low-paying job that matches two or more of the following criteria: morbidly obese, obscenely overpaid and under-worked, ridiculously mean, and beyond lazy/lethargic.

Joseph was hired by the school district as a part-time middle school English teacher, but his salary was only $25,000 a year and he didn't get a raise for five consecutive years. His McBoss LaShonda on the other hand, was making $200,000 a year to do not even a quarter of the workload that he did, weighed in at 330 lbs of pure body fat, was a crazy psycho bitch, and she sat around at her desk all day shoveling a dozen big macs, a bucket of soda, and a drum of KFC down her throat, all payed for by your hard-earned tax dollars!

McBoss by jlloyddaman June 18, 2014

apple mctoaster 

slurred speech by that of an Italian ginzo as a result of drinking an excessive amount of alcoholic beverages. Some acts of this can be blurred vision, redonkulous comments and phrases such as crevices and caves, and loss of balance. One may feel as if they are walking on icy lava with the assistance of their good ol friend captain morgan.

Dude, my friend was so trashed on Thursday night he was saying wack shit such as apple mctoaster

apple mctoaster by harry panees November 10, 2010

matossian 

wolf man, hairy individual

that guy was so hairy, he must be a matossian

matossian by anita man December 24, 2006

McBossy321 

A Lazy Fuck who doesn't know any of the work he is assigned while also being a furry.

Whoa, That man is being a McBossy321.

McBossy321 by odnam March 8, 2022