An "older," experienced woman who happens to find herself in a sexual relationship (committed or not) with a younger man. She is not necessarily a slut, nor is she desperate. She offers sexual expertise and is open to new experiences. She simply wants to have fun. Though older, she may actually look younger than her "hook-up." She is attractive, confident, and just wants to have fun. She will not attempt to trap her mate into marriage, children or even an exclusive relationship. She is not interested in drama or games, as that would interfere with the pleasure she enjoys.
My friend says I'm a cougar because I'm having sex with a younger guy, but I didn't hunt him down - he approached ME!