Any thing and everything, When describing someone or something It dosent have to make sense, It's a universal word, Those who are random use it at the end of a sentance as a great climatic thing to say, It's not an offensive word nor a complimentary word it's just THE WORD!!!

Sometimes described as Jase/Lauranesss!!!
"Whoa that guy outside with the ginger mullet is well McFitty"
by Jase McFitty September 19, 2007
Get a McFitty mug for your mother-in-law Helena.
someone who is attractive, a pun on the biscuit brand mcvitties.
look at her she is a propa mcfittie!
by ghandimcfittie August 31, 2008
Get the mcfittie neck gaiter and mug.
A take on the word McVitties, but referring to Fit people, hot girls/boys
There are no Mcfitties at this bar, lets leave and go to another one
by SlickTingz January 28, 2012
Get the McFitties neck gaiter and mug.