Who knows?

Who knows?

I don't really know what the answer is. A: "What does this big red button do?" B: "Who knows? The boss just said to never push it." I guess this stuff is supposed to help keep the weeds out of the grass or something. Who knows?
See also: who
Farlex Dictionary of Idioms.

Who knows?

Who knows the answer to that question? Tom: When will this train get in? Rachel: Who knows? Andy: Why can't someone put this stuff away? Rachel: Who knows? Why don't you put it away?
See also: who
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • right on the button
  • button it
  • button it!
  • boss man
  • boss lady
  • too many cooks spoil the broth
  • too many cooks spoil the soup
  • too many cooks spoil the stew
  • button up
  • couldn't help it