くちばかり
kuchibakari

Noun

1. all talk (and no action)

あいつはくちばかりで、誠意せいいがないね。巧言こうげん令色れいしょくすくなしひとしとはよくいったもんだ。
aitsuwa kuchibakaride sēiga naine. kōgenrēshoku sukunashi jintowa yoku itta monda
They say fine words are no virtue if they're insincere and that's him in a nutshell. He's all talk but doesn't mean a word of it.
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