いとまきぼらじゃないです
糸巻法螺じゃないです
itomakiborajanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of いとまきぼら

1. It's not a silk-reel conch.; It's not a trivial matter.

Negative
Polite
Casual Register
Usually Written in Kana