also: わーかーほりっく
noun
A person who is addicted to work or the condition itself. Used as a noun for both the person and the behavior.
彼は完全なワーカホリックで、週末もずっと働いている。
He's a total workaholic and works even on weekends.
ワーカホリックが原
Many people damage their health due to workaholism.