こけおどしでしょう
虚仮威しでしょう
kokeodoshideshō

Noun
Desu Copula
na-Adjective

Expresses probability in a polite manner ("probably…") of こけおどし

1. Probably bluffing.; Probably just for show.

Polite
Presumptive
Conjecture
Usually Written in Kana