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Phrase(s): (I’ve) got to go home and get my beauty sleep.
Fig. a phrase announcing one’s need to depart because it is late. (See also (I) have to shove off for other possible variations.) • Sue: Leaving so early? John: I’ve got to go home and get my beauty sleep. • Jane: I’ve got to go home and get my beauty sleep. Fred: Well, you look to me like you’ve had enough. Jane: Why, thank you.
McGrawhill's American Idioms And Phrasal Verbs