procasti-working

Working on something that isn't the main thing you should be working on, but in general is good to get done and is helpful.

Steve tidied his whole room, procasti-working instead of actually sitting down and getting on with his project

Person A: "Dude, what are you doing? That isn't what we should be doing today. "
Person B: "This needs to be done"
Person A: "You're totally procasti-working"