Top Definition
The amount of time that seems to have passed while on Tumblr, compared to the amount of time that has actually passed. Such as going on at 3 o'clock for only 5 minutes, then looking at the clock and seeing that it is now 6 o'clock. What it feels like to be on Tumblr.
If only being at school felt like TumblrTime, I'd finish all my classes in an instant!
by edgesofedict May 29, 2013
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