The act of being on tumblr for hours and hours.
I was tumblring so hard last night I forgot to sleep but it's okay because I dipdyed my hair and got an american flag tank and combat boots, I'm a hipster now!
by wannabehipstah January 18, 2011
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Massively overstating how entertained you are in the form of either dying, crying, or noting the point in the universe where your sides reside.
"oh my god i'm dying from laughter" "no you're not, fucking liar." "no dude, i'm serial. My sides are this ( |<-------------------->| ) far apart!" "stop tumblring, bro."
by ze/zy/zo/zum November 11, 2013
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Ever since the creation of Tumblr, insane asylum populations all across the globe are in decline.
by top sweg August 29, 2014
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John: Hey Jane! what did you do this weekend!? I partied every single night!

Jane: i stayed up all day and all night on tumblr.
by ohheygurrrl January 19, 2011
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An inverted social network where the more ridiculous you look the cooler you are.
You dress like a twat... you'd be popular on Tumblr
by someguysdefinitions May 28, 2012
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I was at school earlier, and this guy wear a mustard yellow head band fell down the stairs and tumblred the whole way
by Fitzi the god November 30, 2013
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A popular social media website. Much like King Midas, Tumblr has the power to, rather than to turn everything it touches into gold, it turns it into the worst possible outcome. Tumblr is well known for the unintentional creation of Tumblr feminism, which is well credited for ruining the image of feminism.
Girl:"Hey I just got a tumblr"

Feminist on Tumblr: "Make sure to favorite my post about #endfathersday"
by Riley Freemen October 03, 2014
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