switch off

verb3

1. •
   To stop or disable a device by turning a switch or a lever.

   • To switch off the instrument when the clockwork is not wound up, and to remind the subscriber of doing so, there is provided an indicator, x, which is worked in the following manner. — 1893
2. •
   To lose interest, and start thinking about something else.

   • Fulham switched off as Giggs took a quick corner to Valencia. He played it back to Giggs, whose cross was headed in by Nani with the lurking Rooney unable to add a touch. — 2011
3. •
   To alternate between; to trade.

   • Do you eat all your peas and then all your potatoes, or do you switch off between them as you go?