A pro crastinator is someone who takes procrastination to the next level.
The pro crastinator's motto is "Why put off something until tomorrow that I can put off until the day after tomorrow?"
Jim: It's April 30th. Did you get your tax refund back yet?
Joe: It's April already?
Jim: Joe, you aren't a procrastinator, you are a pro crastinator. Pass me your bong.