( informal ) alcohol that you drink in order to make you feel better when you have drunk too much alcohol the night before
THE HAIR OF THE DOG (THAT BIT YOU)
Meaning of THE HAIR OF THE DOG (THAT BIT YOU) in English
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005