菇凉你真胸
[gū liáng nĭ zhēn xiōng]
A playful and colloquial expression meaning "Oh, girl/woman, you've really done it this time." Here, 胸 is sometimes misused instead of 可爱(too lovely) or 太厉害(too impressive); so it can be humorously exaggerated to express that a girl/woman did something unexpectedly bold, surprising or admirable.