吻別

'吻別' (Wěn bié) in Chinese literally means 'kiss farewell'. This nickname can symbolize a romantic sentiment, signifying the end of a relationship or a bittersweet moment of parting. In a broader sense, it might also suggest saying goodbye to something or someone with a sense of deep affection and lingering attachment. It could be chosen as a username by people who have experienced poignant goodbyes or those who appreciate the elegance and poignancy of this term.