send (one) to the showers
To remove one from a particular situation for poor behavior or performance. Likened to an athlete being removed from a game and sent to the locker room (where one typically showers after the game is over). Coach will send you to the showers if you can't control your temper. I think it's high time the senator sent her press secretary to the showers. His comments to the media have been increasingly inflammatory.
send someone to the showers
and send someone to the locker roomFig. to order a player from the playing field, thus ending the player's participation for the day. The coach had sent four players to the showers before the end of the game. He was angry enough to send them all to the locker room.