Something that is so superlative that it cannot be described by any traditional ranking system. It is A++, 11/10, six stars, and three thumbs up. In rare cases, something can be so exemplary that it becomes SS or even SSS-rank.
Many people have wondered what the S stands for. Special? Super? Schwarzenegger? No one knows for sure.
Comes from Japanese video games, like the Devil May Cry series, where A-rank just wasn't good enough.
1. The atom bomb S-Ranked Hiroshima.
2. The Spartans S-Ranked the battle of Thermopylae. (Even though they lost)
3. Michael Phelps scored an S-Rank combo on the 2008 Olympics.