Idioms related to 'Face' (2) 얼굴이 피당

얼굴이 피당.(Eolguri pida.)
얼굴 is face, and 피당 means 'to bloom.'
So if you translate it directly, it will be 'a face is blooming.'
Obviously, a face can't bloom.

Can it? Maybe.. lol

So if someone says, 너 얼굴이 폈당(Neo eolguri pieota). That means you look happier and brighter.

Example: 너 요즘 좋은일 있니? 얼굴이 폈당. (Do you have anything good happening? You look brighter.