When your Tumblr dashboard makes you jizz your pants.Usually used by people with a lot of porn on their Tumblr dashboard.
Tom:Bill,what's with the stain on your pants?
Bill:Tom,I went on Tumblr today...
Tom:Goddammit Bill,did you tumbl too hard again?
Bill:Tom,I went on Tumblr today...
Tom:Goddammit Bill,did you tumbl too hard again?
by Wing Kalas March 9, 2014
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Tumbl too hard
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