verb. To spend an inordinate amount of time at work
after hours without
compensation.
adj. explains feelings of shock and a sense of being dumbfounded that a person would let themselves be such a tool, most often used in the context of being a tool to a
corporation.
noun. a tool of this sort who lets him/herself be used by their company, and who neglects friends and family over work.
Origins are Japanese, and the Japanese subculture of the sarariman.