Coprocrastination begins with the introduction of a "procrastalyst," which is a person/event/random thing that acts as the initial distractor and is used as a reason to not do work.
D-rock: I'm watching "The Office." That's how far I am.
B-girl: Good. Wanna talk on the phone while simultaneously facebooking? I really don't feel like starting this paper.
D-rock: I'm always down for some coprocrastination!