The existance of a person with no significant other, and no social life to any extent. This person's life consists of doilies, floral print, and the essential ingredient; cats. The catful person can only look forward to the love and devotion of their many cats. The cats will have names that represent the pitiable existance of their owner, such as "Sippy Cup"
"Melianie will live a catful life due to her lack of socialblilty."
"The woman who works in the book store most likely lives a catful existance."