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1. Tumblr snob
The ones who really piss you off for knowing every single blog/post on there.
Friend one: Oh look at this new meme, it's about Trace Cyrus!
Friend two: Uhhhh bro. Seen it, re-blogged, and followed the blog.
Friend one: You are SUCH a Tumblr snob. :||
2. Tumblr Snob
The people on tumblr who think that just because they have a lot of followers it means they run that shit, freak out about it being mentioned outside of the website, or think that posting a gif you didn't make but don't to be yours is a federal crime.
Random Post: Isn't he adorable? (insert gif of Rupert Grint)

Tumblr Snob: OMG! You are such a horrible person. You didn't even make that! And just because you don't claim to it doesn't make it any better!