大姐 | dà jiě | big sister / elder sister / older sister (also polite term of address for a girl or woman slightly older than the speaker) | |
世伯 | shì bó | uncle (affectionate name for a friend older than one's father) / old friend | |
痴长 | chī zhǎng | to not be wiser despite being older / to be older than (you) by (humble) | |
老牛吃嫩草 | lǎo niú chī nèn cǎo | lit. an old cow eats young grass (idiom) / fig. a May-December relationship / a romance where the man is significantly older than the woman | |
小哥哥 | xiǎo gē ge | little boy who is older than another young child (e.g. his playmate) / (neologism c. 2017) (slang) amiable form of address for a young man of about one's own age or a little older | |
小姐姐 | xiǎo jiě jie | little girl who is older than another young child (e.g. her playmate) / (neologism c. 2017) (slang) young lady (amiable form of address for a young woman of about one's own age or a little older) |