短发齐耳是丸子
[duăn fā qí ĕr shì wán zi]
In Chinese culture, people sometimes describe short hairstyles in a cute manner. '丸子' can mean 'bun' as in a hairstyle, but here it refers humorously to short hair bobbed at ear-level, implying the user has this haircut and sees themselves as simple and straightforward.