My roleplaying character is 16, from New York, and of Puerto Rican descent. She speaks fluent Spanish, and I don't.
What would "barbarian" be in Spanish? Or something adequately similar, that she'd be likely to know ("caveman", "primitive", or the like). Preferably something at least somewhat, er, neutral, she has to work with the guy, after all. Preferably without pissing him off *too* much.