Procrastifacebooking

(verb) to procrastinate by going on Facebook; to prevent one's self from doing another tedious activity by going on Facebook, especially if one is a student avoiding homework

Master Chief: what are you up to?

Cortana: Procrastifacebooking. I have to read 4 chapters for class tomorrow, so I'm looking at pictures from Heather's party last weekend on Facebook instead.

Master Chief: Ah