The "(-д-。)" emote, also known as the "Serious Sadness" emote, typically represents a deep sense of sadness or disappointment. The two dashes represent closed eyes with tears streaming down the face, while the "д" character in the middle represents a frown or grimace. It is often used to convey intense emotions in online conversations, such as when expressing sympathy or empathy towards someone who is going through a difficult time.