Moses was "menshy" a word when you were a boy. It seems to me it is a very old word and I don't think it is English so I thought it maybe something bigoted or made-up like Ulster Scot.
[video=youtube;23ZG6HJVKuQ]http://www.youtube.com/watch?feature=player_detailpage&v=23ZG6HJVKuQ[/video]