Tumblestone 

A terrible game that is primarily for lonely colourful people

"Jeez, that girl plays tumblestone a lot, I bet she has no friends"

Tumblestone by _sillywilly_ February 14, 2017

Tumbleson 

How to describe someone if they are an asshole

That guy is really a Tumbleson

Tumbleson by Dackota7 October 24, 2019

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