Yo, r/trees, is there any way I can pass a drug test while still smoking?

I'm getting drug tested for a job on Jan.21 (it will be a urine test), and I want to cheat the system. I can stop smoking for a few weeks but frankly, I don't want to.

Are there any quick ways to detox so I can keep smoking during break? I've heard about some pill you can take that will flush your system, but I don't remember the name and I don't want to get scammed by buying some sketchy detox kit online.

Thanks guys!