Time wasting with intent to avoid necessary action. Typically verbalised by those with access to success yet a predisposition towards failure i.e. work-shy students approaching coursework deadlines.
"Are you doing that coursework for tomorrow?"
"No, I decided to put a definition of procrastination on Urban Dictionary instead."
No, seriously. Get back to work. Now. You're procrastinating. I know it. You looked on the definition of 'Procrastination'. You must be doing it. Go. NOW.