I don't even - A phrase Regina George would yell at you if you spilled her

A phrase Regina George would yell at you if you spilled her juice and then tried to pretend it was a plan

I don't even. You failed the test and still think you're cool.

I don't even. You just texted me 'brb' and left me hanging for three hours.

I don't even. Your hair is on fire and you're still talking about your phone.