noun
drinking money; money for alcohol
Money set aside or given specifically for buying drinks, often in a social or celebratory context.
忘年会のために酒手を集めよう。
Let's collect drinking money for the year-end party.
noun
A small amount of money given as a tip or token of appreciation, often in service contexts.
配達員に酒手を渡した。
I gave the delivery person a tip.