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The official unit of measurement used to determine how "tumblry" a Tumblr post is. A serious post having to do with thermonuclear dynamics written by a Harvard college professor has a very low tumblrocity, while a something posted at 3am proposing a disturbing Spongebob theroy has a very high tumblrocity.
"Dude, look at this post about how Ben Franklin and Spongebob were the same person!"
"That must have a HUGE tumblrocity!"
by MrCroobie March 30, 2015
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