Definition of daylights noun from the Oxford Advanced American Dictionary

 

daylights

 noun
noun
NAmE//ˈdeɪlaɪts//
 
[plural]
 
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Idioms
beat/knock the (living) daylights out of somebody(informal)
 
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to hit someone very hard several times and hurt them very much Get out or I'll beat the living daylights out of you!
scare/frighten the (living) daylights out of somebody(informal)
 
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to scare someone very much
See the Oxford Advanced Learner's Dictionary entry: daylights