Ha finally i figure out what it is "때찌". If you check out Youtube, you will see a lot of videos relating to use of this word. In summary, I think it refers to a tap or strike on something or someone.
How it relates to the Samsung commercial? It goes in parallel that it is tough in design to withstand all kinds of mayhem that can happen to the phone. So you can even scribble hard on it with a S-pen - 때찌때찌, without any problem!