菇凉你笑得很丑诶
[gū liáng nĭ xiào dé hĕn chŏu èi]
'菇凉你笑得很丑诶' (gū liáng nǐ xiào dé hěn chǒu èi) directly translates into 'you laugh ugly, miss/young lady'. In a seemingly teasing tone, the nickname reflects either self-teasing or humor. The owner could be using irony or trying to show humility.