Is there a slang word or phrase for a middle-aged woman who serially dates much younger men? [closed]

Solution 1:

Cougar (slang):

an older woman seeking a sexual relationship with a younger man.

Per the Huffington Post:

And while celebrities like Demi Moore, Madonna, Jennifer Lopez and Sharon Stone may have helped officially introduce the word "cougar" into the English Oxford Dictionary (formally defined as "older women seeking a sexual relationship with younger men"), they aren't the only women in Hollywood who've gone much younger when picking their partners.