send someone to the showers

verb2

1. •
   To remove a player from a particular team competition before the conclusion of the event, especially because that player's contribution on this occasion has been below his or her expected level of performance.

   • [H]e was able to pitch out of trouble until the eighth, when a single by LF Randy Winn and double by 2B Bret Boone sent him to the showers. — 2004
2. •
   To remove or expel someone from a job, position, or activity, especially because of poor behavior or performance.

   • The Federal Trade Commission in recent years has seldom struck out. […]But last fortnight the FTC was caught way off base, sent red-faced to the showers. — 1941