noun
tea-drinking companion; crony; buddy
A casual friend with whom one regularly shares tea and conversation; implies a relaxed, ongoing social bond.
近所の茶飲み友達と毎週お茶を飲みながらおしゃべりする。
I chat with my neighborhood tea-drinking buddy every week over tea.
noun
companionate spouse; spouse married late in life for companionship
A spouse chosen later in life primarily for companionship rather than romance or family-building; a somewhat dated or literary expression.
彼は六十歳を過ぎてから茶飲み友達のような伴侶を得た。
After turning sixty, he found a companionate spouse, like a tea-drinking friend.