derive from acronym of "work avoidance behaviour" - the action of finding something else, ANYTHING else to do other than the task at hand (whether studying as a student or working); like sorting your CDs & DVDs again, making yet another cup of coffee, rearranging your desk, reorganising your inbox, vacuuming the carpet or just browsing the internet, surfing cables channels
someone chatting online to friend: "Hey what you up to?"
in reply: "Well not a lot really, just wabbing!"
The act of Work Avoidance Behaviour
Aimee needs to get a job, she's just wabbing by laying out by the pool.