(Similar to McBender or McABender.)
1. The portmanteau
couple name for the James McAvoy and Michael Fassbender RPS
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 McBender Bromance.
TumblrFangirl 1: OMG I just saw "X-Men FC" for the third time!! FassAvoy never gets old!!!<333
TumblrFangirl 2: Keep calm and ship FassAvoy/McBender!<3