Are you blind?

Are you blind?

An exclamation of dismay when one does not see or react to what the speaker has seen. Are you blind, ref? He almost took the kid's head off on that hit! You don't know why I'm upset with you? Are you blind?
Farlex Dictionary of Idioms.
See also:
  • atcha
  • back at you
  • back atcha
  • hoo-rah
  • noes
  • oh noes
  • (my) goodness
  • ah
  • (for) land('s) sake(s) (alive)
  • gee whiz