欲擒故纵纵然全城骚动
[yù qín gù zòng zòng rán quán chéng sāo dòng]
This nickname means 'playing hard to get, even causing city-wide turmoil'. It's derived from the saying '欲擒故纵' (yù qín gù zòng), a strategy of feigning indifference or aloofness to capture someone's interest or affection. The additional part '纵然全城骚动' (zòng rán quán chéng sāo dòng) exaggerates this idea by adding 'even causing city-wide turmoil', suggesting that this attitude can cause considerable chaos or excitement.