蛋蛋 is a reduplicated form of 蛋 (egg). The most common noun usage is as a pet name or term of endearment for a child, similar to 'little egg' or 'baby' in English. The existing gloss includes 'fruit', which is almost certainly an error (蛋蛋 does not mean fruit). The gloss also lists 'very; extremely' — these are adverbial uses found in some dialects or slang, but they fall outside the noun part of speech assigned to this row. Use 蛋蛋 as a noun only when addressing or referring to a child affectionately.