Procrastinate

Source - How I Met Your Mother - 420 - Mosbius Designs

Verb

• Postpone doing what one should be doing - "He did not want to write the letter and procrastinated for days"
  
• Postpone or delay needlessly - "He procrastinated the matter until it was almost too late"
  

P/s - I think I had discuss about this word before. Hmmm~