Talking about the stars has reputation diminishing

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
name-dropping \name-dropping\ n. The practice of casually mentioning important people in order to impress one's listener.

Wiktionary Word definitions in Wiktionary
alt. The practice of casually mentioning famous or important people or the titles of their works, often subtly implying familiarity or association, in order to impress others. n. The practice of casually mentioning famous or important people or the titles ...

WordNet Word definitions in WordNet
n. the practice of casually mentioning important people in order to impress your listener; "the hard thing about name-dropping is to avoid being too obvious about it"

Wikipedia Word definitions in Wikipedia
Name-dropping is the practice of mentioning important people or institutions within a conversation , story , song , online identity , or other communication. The term often connotes an attempt to impress others; it is usually regarded negatively, and under ...