A woman, who is a hipster who is older than 30, who tries to pick up younger guys.
Oh my God, she's such a cougster... make sure you use a condom or she'll try to get pregnant.
a divorcee (usually over the age of thirty) who has taken to hanging out in cafes and bars specifically to pick up young men of artistic or literary pretensions, i.e. hipsters.
"Where did Christy pick up that twiggy hipster with the glasses?" "Probably downtown at the Irony Cafe, where all the cougsters go to score fresh meat."