I was all set to agree with Narcisse, because minstrel stereotypes are very clear and distinct forms of racial shoe-horning -- however, after actually listening to the provided clip, I'm not sure I'm with him there. Yes, the voice acting on that character is a little strange, it doesn't quite fit anyone I've ever spoken to, and it edges toward some of the minstrel accents I've heard; however, it isn't really all that outlandish, nor is it so much like a minstrel accent to be plainly obvious. It is a strange set of mannerisms, but part of that, I think, comes from a disconnect between the voice (and situation) and the character's appearance. Without looking at the video, the style of speaking brought to my mind a much... larger woman. I don't know, maybe that's just me. For some reason, she just didn't look much like what I think of for a street person.