Could you tell me what sort of emotion or implication Applejack tries to convey with the oh, yeah? The prosody tell me that it is not your ordinary usage of "Oh, yeah" and has some special usage. Thank in advance!
Applejack: Oh, yeah? Well I challenge you to a hoof-wrestle. Winner gets the ticket.
I don't find anything unusual about it; the accent is (I think) a southern US variety, which may be throwing you off a little. com/Oh,%3F
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