缠绵饮交杯尽

"Chánmián Yǐn Jiāobēi Jìn" refers to "Experiencing the bittersweet taste from drinking cross-cupping wine". In Chinese tradition, 'cross-cupping' involves couples swapping and drinking each other's drinks which is often used at weddings. Thus this idiom carries significant symbolism of close relationships between two parties or people, particularly lovers or spouses, savoring every moment together.