noun, noun or participle which takes 'suru', intransitive verb
coming home in the morning; returning home at dawn
Typically implies staying out all night, often after drinking or partying. Can be used as a noun or with する to describe the action.
彼は昨夜も朝帰りだった。
He came home in the morning again last night.
朝帰りが続くと体調を崩すよ。
If you keep coming home in the morning, you'll ruin your health.