drinking together while pouring for each other
Describes the mutual act of pouring sake or other alcohol for one another while drinking together, emphasizing the reciprocal hospitality.
At the banquet, we enjoyed drinking together while pouring for each other.
Compound of 相 (あい, mutual) and 酌 (しゃく, pouring alcohol). The reading じゃく is a voiced variant of しゃく in this combination.