[plural] [noun] [informal]If you beat, knock, etc. the (living) daylights out of someone, you hit them with great force.I'll knock the living daylights out of him if he says that again!If something frightens, scares, etc. the (living) daylights out of you, you are very frightened by it.That explosion scared the living daylights out of me.
DAYLIGHTS
Meaning of DAYLIGHTS in English
Cambridge English vocab. Кембриджский английский словарь. 2012