スマトラだいごんにゃくでしょう
スマトラ大蒟蒻でしょう
sumatoradaigonnyakudeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of スマトラおおこんにゃく

1. Probably a giant konjac from Sumatra.

Polite
Presumptive
Conjecture
Usually Written in Kana