also: ましらざけ
noun
monkey booze; naturally fermented fruit alcohol made by monkeys
Refers to a folkloric or natural phenomenon where fruit cached by monkeys ferments into an alcoholic liquid. Not a commercially produced drink.
山の中で猿酒を見つけたという話を聞いたことがある。
I've heard stories about people finding monkey booze in the mountains.
猿酒は、猿が木の洞にためた果実が自然に発酵してできたものだと言われている。
Monkey booze is said to be made when fruit stored by monkeys in tree hollows ferments naturally.
Compound of 猿 (さる, 'monkey') and 酒 (さけ, 'sake/alcohol'), literally 'monkey sake'. The reading ましらざけ uses the older word ましら for monkey.