"Where we going, 'eing'?"

Ju uses this word frequently now, when talking in English and in Portuguese. "Hein" is like 'what' or 'huh' depending on the context. It's quite common in conversation in Portuguese, but when he uses it in/with English, it makes him sound like someone from the U.P., eh? I am a Michigander (still don't like that word, I am not water fowl) but I am not a Yuper. My son, however, is beginning to sound like one.