If your girlfriend calls you "Stars" in reference to the restaurant where you met, she is using a personal idiom.

Name: If your girlfriend calls you "Stars" in reference to the restaurant where you met, she is using a personal idiom.
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Question

Quizplus · Accepted Answer

A personal idiom is a unique word or phrase used within a specific relationship that has a special meaning known only to those in the relationship, such as using "Stars" to refer to the significant place where they met.

If Your Girlfriend Calls You "Stars" in Reference to the Restaurant