3 levels that students can be in my school: Platinum, Gold, Blue, and in that order from not that smart to smart. Platinums, as i like to call them, are dumb idiots who are sassy and are going to get nowhere in life.
Popularized by the character Tskihi from the anime Monogatari,
Tsukihi changed puchi mukatsuku (slightly mad) to purachina mukatsuku (platinum mad) because it sounded cooler.