I've heard this expression before but I don't exactly know what it means

@ganon15: It refers to someone who thinks Christopher Nolan and his movies are perfect in every way.

It's basically a term for a huge Christopher Nolan Fan

In this site its anybody that thinks Nolan is better that Synder, Abrams and Whedon.

And here we go.

Opposers of marvelites

A sub-sect of Chewforce followers. Mainstream Wenjunites adhere to the Book of Gotham, written by Lords Morrison and Miller and its story told by Prophet Chew, while Nolanites worship and meditate about The Dark Knight, an aspect of Batgod as told by Lord Christopher Nolan.