掛かけ声ごえ倒だおれ

noun

all talk and no action; mere sloganeering; starting with a bang but ending with a whimper

Describes a situation where there is a lot of initial enthusiasm, shouting, or promises, but no follow-through or concrete results. Often used critically of plans, campaigns, or people who are loud but ineffective.

• 彼かれの改かい革かく案あんは掛かけ声ごえ倒だおれに終おわった。

  His reform plan ended up as mere sloganeering.

• 掛かけ声ごえ倒だおれにならないように、具ぐ体たい的てきな行こう動どう計けい画かくが必ひつ要ようだ。

  To avoid it being all talk and no action, we need a concrete action plan.