When a cougar
sucessfully stalks and captures its prey(younger guy). Usually the coog-ee will be too distracted by tits and/or ass to articulate this, but the friends that he leaves behind will most likely remark on their bro getting cooged.
Sexy Lady: Hey Chaz, do you want to come do some unimportant task privately with me away from your friends?
Chaz: Sure, (to friends) I'll see you guys later.
You Guys: Damn bro, Chaz just got cooged.