でたらめでしょう【
出鱈目でしょう
】

detaramedeshō

Noun

,

Desu Copula

,

na-Adjective

Expresses probability in a polite manner ("probably…") of でたらめ

1. Probably a lie.; Probably nonsense.; Probably made up.

Polite

,

Presumptive

,

Conjecture

,

Usually Written in Kana