tumblelog 

A tumblelog is a variation of a blog, that favors short-form, mixed-media posts over the longer editorial posts frequently associated with blogging. Common post formats found on tumblelogs include links, photos, quotes, dialogues, and video. Unlike blogs, this format is frequently used to share the author's creations, discoveries, or experiences without providing a commentary.
The term "tumblelog" was coined by Why the lucky stiff in a blog post on April 12th, 2005, while describing Anarchaia.
from Wikipedia

Jennifer saved her instant messaging chat content, photos from her mobile phone and videos she found on YouTube on her tumblelog.

tumblelog by Jennifer Sardam August 31, 2007

tumblecock 

A rolling ball of cock. Used as an insult. When someone is beyond just a cock, they are so much cock that it can't stay in one place.

To use the word and the idea best, you need to just yell the word into the face of the tumblecock.

"Bob is a tumblecock!"
"Yea he is, watch this" *walks over to Bob and leans into his face* "TUMBLECOCK!"

tumblecock by Bk0 May 9, 2006

Tumblog 

Noun: A blog that is on tumblr

Hey what you up to?
Just reblogging to my tumblog
Is that the words tumblr and blog combined?
Yep

Tumblog by keineIdee October 18, 2011

Tumbleson 

How to describe someone if they are an asshole

That guy is really a Tumbleson

Tumbleson by Dackota7 October 24, 2019

The Curse of the Tumblogger 

A curse that affects those who Blog on Tumblr. They stay on Tumblr, refreshing their dashboard in hopes of another post, until early morning hours. But when they finally go to bed, they are plagued with the thought of what their Night Blogging Tumblr Friends would be posting. They will not be able to sleep because of these thoughts and will wake up as sleep deprived zombies, but this is cured by another dose of Tumblr, which starts the cycle again.

Non-Tumblogger: Holy Shit, what happened to you?
Tumblogger: Need... Tumblr...
Non Tumblogger: DUDE WAKE UP
Tumblogger: Can't... Need... Tumblr... Dashboard... Night blogging... posts... funny...

Non-Tumblogger: WAKE UP
Non-Tumblogger 2: Leave him be, it's The Curse of the Tumblogger. He'll be fine once he gets on the computer.

The Curse of the Tumblogger by sanchow March 27, 2013

Tumbleclore

The best Roblox group on this planet anything you try to do wont bring it down it can only rise

Random noob: Hey what's this group called Tumbleclore
The great hersheybarlover1: Join to see my child

Tumbleclore by tumfac January 14, 2021

Tumbleslore 

One that is strangely addicted to tumblr.
Not that there's anything wrong with that.
Most commonly also known as a tumblewhore, but eh. slore's more fun.

Person #1: Omg... look at this tumbleslore's tumblr. she updates like every five minutes.
Person #2: Wow. no life.

Tumbleslore (other side of room): they don't understand the true fun of tumblr...
Onlookers: GO TUMBLESLORE!

Tumbleslore by larssss June 29, 2011