A form of escapism from reality by using Tumblr all day and night.
Sorry to say this, but you show some serious tumblrism symptoms. We shall make everything in our powers to find a cure.
by Poble March 26, 2013
When somebody is addicted to Tumblr. Meow. The thought that your life wouldn't be right without it.
Mum: Get off the computer! I bet you're on Tumblr again!
Me: Mum you know I have Tumblrism, going cold turkey would take into withdrawal!
by Voldemortkilledme! August 01, 2012

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