slave to

be a slave to (something)

To be unduly influenced by or care too much about something; to spend too much or time or energy on something. Jeremy is a total slave to fashion. He can't leave the house without making sure every part of his outfit matches perfectly. I wish Sarah would relax a bit more over the weekend. She's a total slave to her job.See also: slave

*slave to something

Fig. someone who is under the control of something; someone whose time or attention is controlled or "owned by" by something. (Fig. on being a slave to a person. *Typically: be ~; become ~.) Mary is a slave to her job. Bill is a slave to his drug addiction.See also: slave