A "cougar" is a confident woman - typically in her late thirties to mid-fifties - who seeks romantic or companionship connections with significantly younger men. The term was popularized by Toronto Sun columnist Valerie Gibson in her 2001 book Cougar: A Guide for Older Women Dating Younger Men, and the younger male partner in such a relationship is affectionately called a "cub."
Per the widely cited "cougar rule," the age gap should be at least eight to ten years for a relationship to qualify as cougar dating. The dynamic flips the traditional script: instead of an older man pursuing a younger woman, it is the mature woman who takes the lead, bringing life experience, financial independence, and emotional maturity to the table. The younger man offers energy, enthusiasm, and a fresh perspective.
Some enthusiasts even use a playful "feline scale" to classify women by age group: a puma is a woman in her thirties, a cougar in her forties, a jaguar in her fifties, and a sabertooth at sixty-plus. The male equivalent of a cougar is sometimes humorously dubbed a "manther." While the terminology is lighthearted, the relationships themselves are built on the same foundations as any good partnership: honesty, mutual respect, and shared expectations.