"Versailles" stems from a Japanese animated film called "Versailles", whose full name is "Kamen Rider W", which was broadcast in 2009. In this animation, when one of the main characters, Detective Menu, introduced his identity, he often used "I am XX from Versailles" to describe his noble identity. Because of its exaggerated and narcissistic tone, this sentence has been widely quoted by netizens and has evolved into a network catchphrase.
Later, "Versailles" was used to describe some people's arrogance, show off, pretense and other behaviors in their speech and behavior because it expressed a "noble and arrogant" attitude. Common examples include "Versailles spirit", "Versailles IQ", "Versailles temperament", etc.