The phrase "la vie est un long weekend fleuve tranquille ok ru" appears to be a mixed-language string combining French and short tokens. Interpreting it yields several plausible readings:
"Life is a long weekend. My river is calm. Everything is OK .ru." la vie est un long weekend fleuve tranquille ok ru
You don't need a holiday to channel this energy. Here is how to embrace the flow: Article: Investigating "la vie est un long weekend
Movie Review: "La Vie est un long fleuve tranquille" (1998) la vie est un long weekend fleuve tranquille ok ru
The user's query mentions "ok ru," likely referring to the social network and video hosting site Odnoklassniki (OK.ru)