不理不睬死缠烂打
[bù lĭ bù căi sĭ chán làn dă]
This is quite a playful expression of a contradictory nature; on the surface, it might mean adopting a stance of ignoring something (or someone), while also relentlessly clinging on or pursuing what they desire, possibly signifying determination in achieving their goals or expressing affection in a unique way.