看かん板ばん倒だおれ

noun

ostentatious; showy; all show and no substance

Describes something that looks impressive on the surface but lacks real quality or substance, like a flashy signboard for a mediocre shop.

• あのレストランは看かん板ばん倒だおれで、料りょう理りは大たいしたことなかった。

  That restaurant was all show and no substance; the food was nothing special.

• 彼かれの経けい歴れきは看かん板ばん倒だおれだった。

  His impressive background turned out to be just for show.