hair of the dog; morning drink to cure a hangover
Refers to drinking alcohol the morning after heavy drinking, with the belief that it alleviates hangover symptoms. The cross-reference むかえざけ is a variant reading.
See also: 迎え酒
My hangover was so bad that I had a hair of the dog.
Some people say that a morning drink to cure a hangover is counterproductive.
Compound of 迎い (mukai, 'welcoming') + 酒 (sake, 'alcohol'), literally 'welcoming sake', referring to a drink taken to greet the morning and counteract a hangover.