give someone the silent treatment

give (one) the silent treatment

To ignore or deliberately avoid talking to one due to being angry at them. Well, I must have done something wrong because he's been giving me the silent treatment all week.
See also: give, silent, treatment
Farlex Dictionary of Idioms.

give someone the silent treatment

If you give someone the silent treatment, you do not speak to them for a period of time because you are annoyed with them. He fully expected his mother to give him the silent treatment.
See also: give, silent, someone, treatment
Collins COBUILD Idioms Dictionary, 3rd ed.
See also:
  • give (one) the silent treatment
  • give somebody/get the silent treatment
  • get the silent treatment
  • look through
  • look through (one)
  • hot under the collar
  • hot under the collar, to be
  • look right through (one)
  • look straight through (one)
  • the awkward squad
References in periodicals archive
So in other words, you can give someone the silent treatment online, whereas you used to only be able to do it in person.