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1.
A specie of human who will compulsively buy any product as long as there is a lower case "i" in front of its name.
my friend is such a Mac Fiend he says things like "hey dude i waited in line for three and a half days to get my new iToaster. I love it even though it cost 580 dollars more than my other one and has the same functionality!!!"
by Eli Buddah March 10, 2008
 
2.
Strange creature living somewhere in the woods, he is looking at sic pictures all day. Sometimes he may even attack strangers who are passing by.
Oh man, I got attacked by a MacFiend again.
by Thomas Rutherfield December 30, 2005