ぶっつけ本番 ほんばんじゃなかったです
buttsukehombanjanakattadesu

Noun
Desu Copula
no-Adjective

The polite, past negative form of ぶっつけ本番

1. Wasn't impromptu.; Wasn't done without rehearsal.

Past/Perfective
Negative
Polite
Casual Register