Tumblr Crush 

When one develops a "crush" or extreme liking to someone's Tumblr page and imagines this person would be their soulmate in real life.

"Meaghan has a huge Tumblr Crush on OMGREG."

Tumblr Crush by meggers27 January 30, 2012

Tumblr Crush 

A crush on someone you've met on Tumblr or a crush on their blog.

Anne: I have a Tumblr crush on someone I've met online.
Billy: I have a Tumblr crush on your blog.

Tumblr Crush by billy72 January 20, 2012

Tumblr Crash of 12/12/12

The infamous tumblr crash of December 12, 2012, is the day when tumblr was down for hours with no warning. Lots of "MY FEELS" and "ALKAFELFJAFJEWLAKJKA" resulted from this. People believe this is really the end of the world, because it happened on a triple date. Some also think that it was also another social experiment conducted by Cole Sprouse.

Sometime in the near future:

-Hey Liz, what are you doing?
-Nothing. I think there might be another tumblr crash of 12/12/12 going on. What will I do with my life? MY FEELS.

Tumblr Crash of 12/12/12 by EZBothwell December 12, 2012