turn someone’s water off

turn (one's) water off

1. Literally, to turn off the flow of water, typically to one's place of residence. If you don't pay your bill, the water company will turn your water off.
2. To thwart or stifle one. We need to turn this guy's water off before he totally undermines what we're trying to accomplish here.
See also: off, turn, water
Farlex Dictionary of Idioms.

turn someone’s water off

tv. to deflate someone; to silence someone. He said you were stupid, huh? Well, I guess that turns your water off!
See also: off, turn, water
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • (I've) got to take off
  • be well off for (something)
  • be well off for something
  • be off for (something)
  • be off for sth
  • (Now) where was I?
  • be off with you
  • blow off
  • blow someone/something off
  • break off