Other forms: workaholics
A workaholic is someone who can't stop working. Workaholics are obsessed with working to an unhealthy degree.
Just as an alcoholic has an unhealthy addiction to alcohol, workaholics have an unhealthy addiction to work. Wanting to work all the time might sound like a harmless desire, but for some people it's a real problem. A workaholic goes to work early and stays late. A workaholic might have trouble relaxing. Many workaholics neglect their families and friends because all they care about is work. Workaholics take a good thing — working — too far.