我在追你为什么要跑你特么为什么拿着刀
[wŏ zài zhuī nĭ wéi shén me yào păo nĭ tè me wéi shén me ná zhe dāo]
'Why are you running when I'm chasing after you? Why the hell do you have a knife?' It might be used for comedic value and to suggest confusion or frustration during pursuit situations.