Amount of grinding it caused: Loads and loads and loads of it. THIS WAS IT. If you were going to grind, it was going to be to this song.
Part everyone sang: "TO THE WINDOOOOWS TO THE WALLLLLS. / TO THE SWEAT DROP DOWN MY BALLS." etc.
How uncomfortable it made chaperones feel: The most uncomfortable. It doesn't get more dirty, grimy, and unhygienic than this.