go as red as a beetroot

US /ɡoʊ æz rɛd æz ə ˈbiːtruːt/
UK /ɡoʊ æz rɛd æz ə ˈbiːtruːt/
"go as red as a beetroot" picture
1.

ponerse rojo como un tomate, sonrojarse

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.
Cuando se dio cuenta de su error, se puso roja como un tomate.
He went as red as a beetroot when his secret was revealed.
Se puso rojo como un tomate cuando se reveló su secreto.