expression, noun which may take the genitive case particle 'no', na-adjective, noun
Slang expression meaning something is extremely good or the best. Derived from 最高 (さいこう) with an inserted の for emphasis or playful effect.
See also: 最高
このラーメン、最の高だね！
This ramen is awesome!
今日のライブは最の高だった。
Today's concert was the best.