小个子的女生萌萌哒
[xiăo gè zi de nǚ shēng méng méng dā]
'小个子的女生萌萌哒' (Xiao Ge Zi De Nu Sheng Meng Meng Da) is quite a cute way of describing oneself - a short girl that is cute as anything ('Mengmengda' being an adorably cutesy term used on endearing little beings). People tend to use it to describe themselves with an innocent and sweet attitude online.