Colloquial verbal locution equivalent to these others: having bad wine, having bad milk, having bad fleas: having bad character. Originally it was said of those who drinking wine, the son of the grape, in excess became violent and unpleasant, with moody, vinegary and haughty attitudes. But some maintain these attitudes almost permanently even in the absence of wine as a way of being. That is why we distinguish having bad grapes from being bad grapes, that is, moody, but in a temporary situation.
