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1.
Someone who smokes pot when they should be working.

A procrastafarian may also procrasturbate extensively.
Get any thing productive done today?

No, I'm a procrastafarian. Being productive is against my religion.
by Heinous April 20, 2006
 
2.
A person who insists they are going to get dreadlocks but then keeps putting it off
Person 1: Tarquin is mugging me right off. He's been banging on about getting dreads for at least 6 months but all he's done is stop washing his hair.
Person 2: He's the archetypal procrastafarian.
Person 1: Word.
Person 2: Righteous.
by pipparts April 12, 2014