go as red as a beetroot
US /ɡoʊ æz rɛd æz ə ˈbiːtruːt/
UK /ɡoʊ æz rɛd æz ə ˈbiːtruːt/
1.
to have your face turn a deep red color, usually due to embarrassment or shame
:
•
When she realized her mistake, she went as red as a beetroot.
•
He went as red as a beetroot when his secret was revealed.