How long has the term “cougar” been used to refer to women? So now they can just start using a term and within a short period of time dictate how it can be used?
Come to think of it, when was the last time you saw an advertisement for a vacuum cleaner that “sucks”? Do the Flintstones still have a “gay old time”?
Not very. I think the "mature woman seeking sex from young men" meaning is less than 10 years old.