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OH MY GOD WATCH THIS GIF SET IF YOU KNOW WHAT IS GOOD FOR YOU!!! It's suddenly so appropriate.

(gif) The longer You watch, the funnier it gets. seriously.

(gif) click on photo to watch the whole thing! BWAHAHAHAAHA

Supernatural, Doctor Who, Merlin, Sherlock, MLP, Avatar:TLA and LOK, TBBT, Disney (only scratching the surface)

from Mashable

The Complete Guide to Tumblr Subcultures

A glossary of some of the most popular and prominent Tumblr subcultures, including fandoms, food porn and social justice warriors.