Twittourettes 

Early Stage Twittourettes:

Early Stage Twittourettes is a condition specific to Twitter users who sit back and watch what other people are tweeting, while not actively tweeting themselves. The Twitter user with Twittourettes will often send seemingly witty, yet random replies to a Tweet that he/she feels will result in, at the least, a short conversation. The Twitter user with Twittourettes will sit and wait for a reply, but 99.9% of the time will be ignored. See Example 1

Advanced Stage Tourettes:

In Advanced Stage Twittourettes, the Twitter user will Tweet random thoughts which are geared towards drawing attention to themselves. The Twitter user with Twittourettes will sit and wait for a reply, but 99.9% of the time will be ignored. See Example 2

Example 1
Early Stage Twittourettes:

NormalUser1: Does anyone know if the Celebrity Standup special on TV is part of the Tour?

RandomUser2: @NormalUser1 Google is your friend

NormalUser1: Everyone says it is, so I won't watch it cuz I'm going to see him on tour.

RandomUser2: @NormalUser1 You're not missing anything, the TV special is censored

NormalUser1: So, is anyone else going to see the Celebrity Standup special on tour?

Example 2
Advanced Stage Twittourettes:

RandomGuy1: I tried vegetarianism, but I realized that all those cute animals are so delicious.

Twittourettes by Greywulf2112 May 17, 2009

Twirrettes 

The need to Tweet almost constantly, resulting in a relentless nonsensical stream of gibberish.

"That British guy Stephen Fry Tweeted like, 389 times in the last hour. He's totally got Twirrettes.

Twirrettes by billmccai October 12, 2009

Twittourettes 

Involuntary, impulsive, erratic tweeting of self-humiliating, inflammatory, offensive tweets using made-up words and incoherent phrases.

Mistakenly tweeting a word not found in the dictionary when trying to sound intellectual is twittourettes. Tweeting nonsensical gibberish. Embarrassing oneself with one's tweets. "Ground Zero Mosque supporters: doesn't it stab you in the heart, as it does ours throughout the heartland? Peaceful Muslims, pls refudiate,"

Twittourettes by PalinGater August 26, 2010

Twourettes Syndrome 

noun.
1. Condition in which social networkers post incessantly and excessively, to the point of annoying everyone who reads their tweets, posts, or status updates.

2. Condition in which social networkers compulsively curse in their posts.

1. OMG, Rich has Twourettes today! Every tweet was extended with tweet longer!

Geezus, Suzie's FB status was like War & Peace this morning. I think she has Twourettes Syndrome!

2. WTF? Did you see Steve's tweet? He's got Twourettes today!

Steve's tweet: "#$%& my life! I hate all of you mother effers!"

Twourettes Syndrome by Zen Diablo February 22, 2011

titrettes 

When you can't keep your eyes off of a girls tits.

Dude her tits were so nice it caused my titrettes to kick in and my eyes stayed locked on her tits and I never looked up at her face.

titrettes by SwabIe October 4, 2013