Honestly, I think it has been lost in translation. Sure, no doubt "Piss and Vinegar" is a great cultural reference to young, dumb boys but seriously - PISS?! Did Mr Ginch Gonch forget the area he was dealing with?
Has he caused a stir? Probably yes. Has he sold a million pairs of underwear? Probably no. I'd be scared there would be stains on these little puppies. Today I am thankful that I am not a boy!