Now if you wish to know, the lyrics are probably about some very intense BDSM style stuff. Not gonna lie, it almost scared me away from the song when I first looked up the lyrics. One person though had the interesting idea that the song is about a Dentist. Look here to see. Got you the lyrics plus translation on this site as well if you're interested.
Fun fact about this video. Til Lindemann the singer had a hole put in his cheek for this video. They literally put a hole in his face to run a lightbulb through it so he could have it for live shows. No CGI for Til's lights, he wants 'em put right in his mouth.
If you want any subtitles...