您怹怣悘

Here involves traditional and rarely used Chinese characters today. '您'(Nin) refers to respectful 'you'. ‘怹’(Tan2) is a respectful way of saying 'he/she' used mostly in Beijing dialect. '怣' and '悘' seem like stylized choices without standard interpretations, adding artistic flair. Thus this nickname seems mysterious and traditional yet respectful and warmhearted, implying the intention to treat all people with due respect