(as) red as a ruby(redirected from red as a ruby)
(as) red as a ruby
Extremely flushed and red, especially in the face, as from embarrassment, anger, or physical strain. My father was as red as a ruby by the time we reached the top of the hill. I was afraid he might have a heart attack or something! Oh, Mike definitely likes you—he turns red as a ruby every time you're around!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.