冷情少女五毒不侵薄情少年无坚不催
[lĕng qíng shăo nǚ wŭ dú bù qīn bó qíng shăo nián wú jiān bù cuī]
'The Aloof Girl Impervious to All Five Toxins and The Indifferent Boy Unyielding Against Anything.' A dramatic way to say two emotionally guarded teenagers; the five toxins are often referred to in traditional Chinese medicine referring here as five types of emotions, the name suggests someone so cold that not much affects them emotionally.