Isaac. A clever guy from England who all the women love. You don't want to introduce Isaac to your American girlfriend because he is "that guy." Isaac is the type of guy to claim to grow up in England but has lived in California for years.
Guy #1: Hey bro you know Isaac right?
Guy #2: Yeah, but don't talk so loud around Grace, she doesn't know about him!
Guy #1: Dude! Of course. He is a lady magnet. Wouldn't want anything happening there.