tumblr 

a virus. don't get one.

"hey, what's a tumblr?"
"oh man, it's a virus. it sucks, don't get one"
"oh em gee, thanks for telling me!"

tumblr by we'llbebackshortly February 21, 2011

Tumblr 

the social media site for the insane. run.

oh no that person is on tumblr. run

Tumblr by I'm_Definitely_Not_A_Alien April 15, 2019

tumblr 

A site where you can re-post pictures from all over the internet and claim that it's yours.

I steal shit from Reddit, 4chan, and other sites and post them on Tumblr and become "tumblr famous"

tumblr by ruupert July 13, 2011

Tumblr 

A place on the internet where pretentious try-hards who think that they are smarter than everyone else just because they watch Dr. Who gather to brag about how "nerdy" they are because they play Pokemon. The people on this site also love to claim that they are bisexual or have a mental disorder so that they can get attention.

Tumblr user 1: I'm bisexual and I hate society! ...PLEASE PAY ATTENTION TO ME!

Tumblr user 2: I play Pokemon and watch Attack on Titan and My Little Pony and Dr. Who; I’m such a nerd! Haha nerds for life! XD ...PLEASE PAY ATTENTION TO ME!

Tumblr user 3: Guys, I think I have OCD and aspergers! These mental disorders that I diagnosed myself with make me different and special, so DON’T JUDGE ME! ...PLEASE PAY ATTENTION TO ME!

Tumblr by dynomioshin June 17, 2014

tumblr 

teen bloggers posting fake as fuck social justice stories for internet pointz and lel SO QUIRKY boys pretending to be gay to oppose their FUNDIE CHRISTIAN parents

tumblr stories are less believable than those not always right stories

tumblr by lardlord November 26, 2013

Tumblr 

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.

Tumblr by freddie-bren October 3, 2010

Tumblr 

A website with period blood smeared all over it. It's where people go to vent or hibernate for hours on end. It's where various phrases and contagious memes are spawned.

"Holy shit! It's 3 am and I've been on Tumblr for 5 hours"

Tumblr by ImSlimShady January 14, 2016