Twitteronia

A country (of the virtual variety). All twitter users are citizens.

@THE_REAL_SHAQ is the King of Twitteronia.

@THE_REAL_SHAQ: "To all twitterers , if u c me n public come say hi, we r not the same we r from twitteronia, we connect"

Twitteronia by THE_REAL_HYFEN February 28, 2009

Twitterosaurs

The insatiable beast that's devouring the lives of millions of people on planet Earth.

Anthropologists all over the world have expressed their concern about the Twitterosaurs. It's still uncertain if it can be stopped.

Twitterosaurs by Coco Nut January 12, 2010

Twitterponies

A public community of My Little Pony: Friendship is Magic roleplayers who utilize Twitter to present their original (or not-so-original) characters to other players and write scenes that incorporate their characters. Most players tend to write material canon to the television show. The community has a wiki page stating rules and guidelines initially written when the group was formed in February of 2011, but compliance to these guidelines has generally decreased as the community has become more popular. So far over 10,000 Twitterponies oriented accounts have been created. The designation for these accounts on Twitter is "@mlp_(insert name)".

"Have you done your math homework yet?"
"Nope, I've been updating my Twitterponies account all morning!"

Twitterponies by Lightning Twister July 28, 2013

Twitteredian

A person who uses the Twitter service to dispatch jokes, who also believes themselves to be funny, but in reality are not.

"Did you read Joe's last twitter?"
"Yea, he's a regular Twitteredian *Rolls eyes*"

Twitteredian by Dr. Albert Grizzly March 18, 2010

Twitterian 

1. A person who tweets a lot.

2. Korean term for a person who uses Twitter.

1. Elon Musk is probably the biggest Twitterian on the internet right now.

2. Yo look at that paohu! She looks like those twitterians from megalia!

Twitterian by Leonid117 May 18, 2022

twitteroids 

Swelling and inflammation of vascular tissues in the anal canal as a result of sitting on the toilet for long periods of time while tweeting, blogging, texting, status updating or otherwise engaging in the creation or perusal of text based commentary through an internet connected device.

I tweeted for so long on the toilet, I think I gave myself twitteroids.

twitteroids by Visagoth January 15, 2011

Twittersona 

A twitterer's persona.

i.e. Twitter + Persona

There are those who would use their twittersona for evil.

Twittersona by Shannon McDonnell February 12, 2009