Wozzing or to woz is to deliberately, knowingly waste time when you have actually got something rather important to do. Examples include: tidying your room when you should be revising for an exam or randomly deciding to finally back up all your photos onto CD when you've got a presentation for work to prepare. Origin: acronym W.A.S. "Work Avoidance Strategy".
Mum: "Have you finished that essay yet?"
Child: "I'm just sorting some old clothes out for the charity shop".
Mum: "It was due last week...Stop wozzing and get on with it!"