adverb, noun
exchanging sake cups; drinking together
Describes the back-and-forth action of pouring sake for each other, often implying a friendly, convivial atmosphere. Used adverbially or as a noun.
二人は差しつ差されつ、夜遅くまで語り合った。
The two of them exchanged sake cups and talked late into the night.
宴会では差しつ差
At the party, we became friends while pouring sake for each other.