Aug 26, 2019 · 大哥 means: 1. The eldest brother in one's peers. 2. The boss of a gang. The address of reiterative diction in Chinese, like 哥哥, is often used by kids or juniors, compared to 哥. If the style is used in persons' name, it makes a nickname. Referring someone as 大哥哥 (big brother) to a kid is not unlike referring a "狗" (dog) as ...