textcrastinate 

To delay/wait texting back someone who has sent you a text in order not to appear overly excited about the fact that they texted you. This is especially true when it is someone you are interested in.

I'm so excited....John just texted me! I am going to textcrastinate as long as possible before I reply.

textcrastinate by Hot Salsa October 30, 2007

Twitcrastinate 

the act of mindfully wasting time while on Twitter.

I have so much work to do but instead I'm going to Twitcrastinate for a few more hours.

Twitcrastinate by Sleeping with Ward Cleaver April 21, 2009

twitcrastinate 

Neglecting one's life by wasting time on Twitter.

I have so much work to do but instead I'm going to twitcrastinate for a few more hours.

twitcrastinate by Sleeping with Ward Cleaver April 21, 2009

tweetcrastinate 

How tech geeks procrastinate: randomly updating their twitter account over and over and over and over…usually with boring updates.
Combo of procrastinate and tweet.

Tech geek online: Today, I got bored and decided to tweetcrastinate. Ha. Ha. Ha.

tweetcrastinate by chocolate chocobo November 29, 2009

Teamcrastinate

When the studied avoidance of work is participated in by more than one person.

Practised when a task to be avoided is shared by more than one person, when multiple people who have seperate tasks to be avoided share in each others avoidance, or when it is simply not enough to procrastinate or multicrastinate.

Melissa and Johannes hated the assignment so much that they decided some teamcrastination was in order and headed off to the pub.

I should be writing an assignment and he should be doing laundry, but instead we are going to teamcrastinate and order pizza.

Teamcrastinate by Cagney (or Lacey) December 1, 2010