Cock carousel

[Rihanna]

An idea perpetuated on [manosphere] blogs that women casually sleep around in their [20s] with hot, non-commital player types.
Then, supposedly, when they hit their [30s] and lose their looks, they realize they wasted their prime man-snagging years and become desperate to settle down, often with a boring, dependable flavor of guy they previously had no interest in.