As in someone who "drifts" from place to place. It's clarified when she follows-up by saying he's not a local, as she would have heard of someone of his level of skill. As for the attitude, perhaps she's simply an abrasive person, or perhaps people who stray from their hometowns are looked upon unfavorably in their society. Implying that they are fleeing the wrath of their local authorities. Which isn't so wrong in Elma's case, even if he was exiled for no fault of his.Drifter?
Luce is the sanest girl he's come across"Crazy-Chick-Magnet" Elma strikes again.