BR 376:4(1) :חלה מזל חמרה‏ : the vinegar debases the wine
See the entire entry for zll vb. to be of little value

BR 376:4(1) :חלה תוזיל חמרא‏ : vinegar cheapens the wine
See the entire entry for ḥal, ḥallā n.m. vinegar