さるのこしかけでわありません
猿の腰掛けではありません
saruno koshikakedewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of さるのこしかけ

1. Not a monkey's seat.; Not someone to be trifled with.

Negative
Polite
Formal Register
Usually Written in Kana