a drug
person 1: whatchu doing?
person 2: on tumblr
person 1: is that a drug?
person 2: yeah.
by trololoperson September 10, 2011
A place where everyone loves you. You know, unless you're religious, don't like cats or triangles or Nutella. You MUST be obsessed with Lady Gaga and Adele and every hipster shit band ever. Also, you have to love Doctor Who and Harry Potter and HATE and REJECT anyone who like Twilight or Kristen Stewart. Bacon is life there even though it's gross. People there all hate everyone on their Facebooks, but refuse to delete them. Oh yeah, if you talk about Tumblr outside of tumblr, you're a MUGGLE and will be unfollowed. The best part? People there say that if you don't like what is posted on their blogs to unfollow them. Then they bitch and moan that they're losing followers. Tumblr is an evil place ran by hipster douche bags who are accepting to only a handful of people who follow their "Rules of Tumblr"
Tumblr User: Ughh forever alone guisseee! Facebook sucks! lawlz! Sex. Drugs. Fashion. LOL NUTELLA AND CATS ARE MY ONLY FRIENDS!!! LAWLZ
by Riley7Dawson November 05, 2011
A magical secret world filled with mermaids, unicorns, weed, cats, triangles, sunsets, cigarettes, and the Olsen twins.
You shouldn't know about tumblr, but since you do, here's a picture of a mermaid for you to post.
by rufus6564 May 21, 2011
A loving and supportive online community*

* = unless you are all or any of the following: white, male, straight, cisgender, neurotypical or belong to any "privileged" part of society, then you should kill yourself.
Tumblr was a great and fun website until the social justice warriors attacked me for having an opinion.
by heyitscarly28 June 09, 2014
A website where you waste all of your time but end up feeling good about it.
I was on tumblr all day. Another day well spent.
by ocd22 July 05, 2012
Tumblr is fine. It's a blogging site and allows you to interact with people.If you dislike HP (no Twilight lovers, it's just a sucky romance about vampires which they probably haven't even read & apparenty LOFTR is on the same level?), aren't a 90's child( the last generation with sense they say), or aren't perfectly grammatically correct in everything you type, you will be made fun of, judged & stupid.They despise people on FB because they are treated better than them; usually take a screen shot of the status and post it for lulz on someones spelling or just a question they had that may have been stupid.Then stick their FB links in their description. Basically, if you don't have the mindset of a 'misunderstood' teenager, you don't belong. & you also must be a future cat lady, eat nutella & pizza & have no social life. Don't tell anyone about it because they think no one knows. If you're homophobic, leave. Everyone on Tumblr will hate you as the site is predominately gay. J.K Rowling is God, God doesn't exist, Gays are the best, Obsesity is beautiful, Skinny people are bitches, tans are for whores, FB is shit & trolling is life. If you dislike any of this and express it, you will get anon hate telling you to kill yourself & you're stupid & insult you because you placed an unpopular opinion. Tumblr famous people don't talk to you, don't like you, don't follow you back or even attempt to do anything.Only a Tumblr user would look this up and the response would be: U MAD? -_-
You know that socially awkward, dramatic, problematic, emo boy/girl at your school? They have a Tumblr.
by The Inquirer June 26, 2011
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

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