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(Similar to McBender, McABender and Fassavoy)

1. The portmanteau couple name for the James McAvoy and Michael Fassbender RPS pairing.

2. Fandom involving the two actors James McAvoy and Michael Fassbender.

3. A good example of bromance that has spread like a wildfire after the newest X-Men-movie "X-Men First Class" where the two actors played Professor X(McAvoy) and Magneto(Fassbender) together.

4. Also claimed to be a lifestyle cultivated by fangirls of the McFassy Bromance.
TumblrFangirl 1: OMG I just saw "X-Men FC" for the third time!! McFassy never gets old!!!<333

TumblrFangirl 2: Keep calm and ship McFassy!<3
McFassy by McFassyGirl July 17, 2011
Related Words

Joe McFaddin 

A guy with an amazing voice, who will one day change the world with it.
Person 1: Wow he's awesome!
Person 2: He must be Joe McFaddin!
Joe McFaddin by LauraxGirrrrl October 19, 2010

Daddy McFaddy

Somebody who is short and pudgy (usually male) slips in and out of slippery situations. Usually could be found running around without a shirt, covered in lube and spreading it upon others.
We all had to run out of the locker room when we saw daddy McFaddy enter covered in goo and slime.
Daddy McFaddy by Krooty June 25, 2018

Fatty McFatsofat 

(Noun) An individual whose physique becomes enlarged and grotesque as a result of consuming too much McDonald's food. This phenomenon, albeit formerly unnamed, gained national attention and was popularized by the documentury "Super Size Me."
Fatty McFatsofat at the Drive-Thru: "I'll have two Big Macs, no wait, make that eight Big Macs. And... throw in a batch of fries, you know, a whole basket full, however many large-sized fries that is... One McRib, three of this little cheeseburgers, a twenty-piece Chicken McNuggets... and..."
Fatty McFatsofat by jpsi December 24, 2008

Connor McFaded 

When you're so high that if being high was a sport, you'd be the first overall pick.
Hey b, you jack highchel right now?

Nah b, I'm Connor McFaded.
Connor McFaded by spacepope666 December 10, 2014

mcfatshit 

the asshole in front of you in the drive thru line that takes forever.
christ, how much food did this mcfatshit order? hurry up!