ProdPod, a Productivity Podcast

The first accepted definition is procrastination being a lack of motivation leading to non-action. The second common definition of procrastination is the putting off till tomorrow what you can do today. The third, lesser known and my personally-accepted definition, is the doing of lesser-priority activities instead of doing higher-priority activities. Therefore, procrastination is a supplanting of activities, delaying activities of higher importance as a by-product; not laziness, not lack of motivation, and not lacking in self-efficacy. 

Normally I would say that asking yourself why you're thinking a particular way would be the first step to conquering any unproductive behavior; however, this is an exception to that as I think you shouldn't think one more minute about why you procrastinate and stop defining procrastination as a character trait. Banish the term "procrastinator" and the statement "I'm a procrastinator" from your vernacular. It's a behavior and behaviors can change by building new, productive behaviors. 
 
Heck, procrastination can be positive; for example, doing a high priority activity when the right energy, emotion or competence is not available can be detrimental. Doing the lower-priority activities during those times can be the best use of your time. 
 
I'll have many more episodes on conquering and finding balance with procrastination, and I wanted to set a good definition in place for the context of managing procrastination and, ultimately, your productivity.