你麻麻的女儿喜欢我你粑粑的儿子喜欢我
[nĭ má má de nǚ ér xĭ huān wŏ nĭ bā bā de ér zi xĭ huān wŏ]
The nickname uses a child-like play on words, meaning something like 'your mommy's daughter likes me and your daddy's son likes me.' This seems intended to be cheeky, possibly implying admiration from multiple family members or simply poking fun.