"Döner Kebap" means something along the lines of "rotating meat". Basically, it is a sliced lamb loaf roasted while rotating around a vertical axis. As far as I know, it has Persian and Turkish roots.
As for the little dots, the letter is called "Umlaut". This, as well as most other special characters, cannot be displayed when entered by means of the keyboard (in my case, a German keyboard). There are several ways to bypass this, for example by using the numeric character entity reference:
In place of xxx, you insert the respective (triple-digit) code (I only know a few by heart).