Zed, I know you're nasty and all.. But this is beyond belief. If you knocked something in the sink, you can simply pull the dish out the drain. That way the water will just go down.
you are feral and this why plumbers charge a lot because idiots take dumps in things they shouldn't or flush stuff in toilets they shouldn't your kitchen sink outlet is half the size of your toilet outlet disconnect the trap and enjoy cleaning out your mess