look up any word, like thot:
 
54.
An alternate universe where teenage girls reblog pictures of attractive girls or cute couples and use the terms "forever alone" or "UNF" a lot. They then get so obsessed with how many followers that they have, and this leads to them sitting on their computer for hours on end and never hanging out with their friends.

Oh and watch out, Tumblr goes from puppies to porn in a matter of seconds. (or if you prefer kitties to titties, it's the same idea)
John: Hey Matt, where's Jenny? I haven't seen her in months!

Matt: She got a Tumblr.
by suhhspence.tumblr May 22, 2012
 
1.
The end of your social life.
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
 
2.
you just won't understand.
Tumblr is life and culture.
It is the epitome of culture and the total antithesis of the modern day pop culture which is so ingrained in today's children. There is no possible way to explain such a phenomenon to others.
You either get it or you don't.
by freddie-bren October 03, 2010
 
3.
a place where you can post anything and no one will judge you for it.
" i killed a bitch today. "

post that on facebook and people will be chocked and shit, but tumblr ... tumblr's cool.
by FUCKYOUIMDOPE October 28, 2010
 
4.
A discrete website for interesting yet random people, where you can express yourself without being judged. You can post whatever you like, whenever you like. Not everyone understands tumblr, so don't worry about idiots from school/work/anywhere to be joining.
Facebook person: I think I'll join tumblr.
Tumblr person: NOOOOOOOOOOOOOOOOOO!
by Alestar563 December 09, 2010
 
5.
It's where all the sleepless hipsters are. Tumblr is where sleep deprivation is a normal thing. Bacon is life. Tumblr people have their own language called sarcasm. Our relationship statuses is always "forever alone". And we're all cats. problem?
facebook girl- Hey omg. your so cool. whats tumbler?
tumblr person- *you're oh and its tumblr. Tumblr is a site where you can get viruses, so i think you shouldn't get one for your sake.
by blissfulbits.tumblr.com January 16, 2011
 
6.
Tumblelogs are miniblogs — a fast way to share links, photos, and videos without the bells and whistles of a regular blog.

Unlike blogs, tumblelogs are frequently used to share the author's creations, discoveries, or experiences while providing little or no commentary.
If blogs are journals, tumblr is a scrapbook.
by Launchd June 09, 2008
 
7.
should not be spoken about.
You: What's tumblr?
Me: shhh! *walks away*
by Real Miss Kitty February 19, 2011