つまぐろよこばいじゃなかった
褄黒横這じゃなかった
tsumaguroyokobaijanakatta

Noun
Da Copula

The past negative form of つまぐろよこばい

1. Wasn't a narrow, black, horizontal line.; Wasn't a narrow black stripe.

Past/Perfective
Negative
Usually Written in Kana