最さいの高こう

expression, noun which may take the genitive case particle 'no', na-adjective, noun

awesome; the best

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、最さいの高こうだね！

  This ramen is awesome!

• 今日きょうのライブは最さいの高こうだった。

  Today's concert was the best.