Girl 2: She's such a Karagh.
2. A woman with an intense and passionate interest that is central to who she is.
Person 1: Did you see Sarah the other day?
Person 2: Yeah, I thought she was a bit of a Karagh.
Person 1: Hands off, mate, she's mine!
Person 1: What do you do for a living?
Person 2: I study biology. I love it.
Person 1: I guess you're a Karagh then.
Person 2: Yeah, and proud of it.