ˌSleeping ˈBeauty
the main character in a fairy tale called Sleeping Beauty, who is a princess who lives in a castle. An evil fairy makes the princess and everyone else in the castle fall asleep forever. A thick forest grows around the castle and hides it until, after a hundred years, a prince finds Sleeping Beauty and kisses her, and then she and everyone else in the castle wake up. Someone who seems to be sleeping peacefully is sometimes described as ‘Sleeping Beauty’:
Just look at Sleeping Beauty there!

[TahlilGaran] Dictionary of Contemporary English ▲