かなくそじゃありません
金屎じゃありません
kanakusojārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of かなくそ

1. It is not golden feces.; It is not a golden turd.; It's not that great. ; (Figurative - implying something is disappointing)

Negative
Polite
Terminal Form
Usually Written in Kana