a blind man could see this/that/it

a blind man could see this/that/it

This/that/it is very clear, obvious or apparent. Emily has a crush on Josh? Yeah, no kidding, a blind man could see that. A: "He's having a hard time hiding his stage fright." B: "Um, yeah, a blind man could see it."
See also: blind, could, man, see, that, this
Farlex Dictionary of Idioms.
See also:
  • who am I kidding
  • aside
  • can't call (one's) time (one's) own
  • no kidding
  • No kidding!
  • wouldn't be seen dead with
  • wouldn't be caught dead with (someone)
  • butter wouldn't melt (in his/her mouth), looks as if
  • been to hell and back
  • crappy