Twitter-vom 

The event where an individual tweets a lot in a very short space of time about a series of unimportant and seemingly unconnected topics.

(n.b. this occurs often as a result of either caffeine highs, drunk tweeting and extreme boredom/procrastination)

Person 1: hey, did you see twitter last night?
Person 2: No, why?
Person 1: Tom got drunk and had a bad case of twitter-vom last night, it was hilarious.

Twitter-vom by weg m January 7, 2013

Twitterbomb

To pollute the stream of a Twitter hashtag by tweeting a meaningless, satirical, or spamlike tweet containing the hashtag. Usage is comparable to googlebomb.

McDonald's marketers were horrified as #mcdstories, meant to solicit positive tweets about experiences at the restaurant chain, was twitterbombed with replies like "I ate a Big Mac and got the shits for 24hrs. #mcdstories"

Twitterbomb by bselig November 7, 2012

twitterdom 

A particular domain or field of twitter communication.

In the twitterdom of gossip, Ann and Katie are queens

twitterdom by JosephOduroFrimpong April 22, 2009

Twitterdom 

The kingdom of Twitter. All the twitter applications, the twitter network, and the twitter people (tweeple) are a part of Twitterdom.

There is much to survey and learn about in Twitterdom.

Twitterdom by bgamall June 9, 2009

Twitterbomb

When people following you on twitter get mobile device updates from your tweets. Most humorous when they are all in the same room.

During our meeting, I tweeted how bored I was and unknowingly sent a twitterbomb to everyone in the room.

Twitterbomb by kcsat0m1k February 4, 2010