A disparaging expression for complaints or boasts made by someone powerless or defeated — ineffectual grumbling or empty bravado.
上司に直接言えない彼の批判は、ただの犬の遠吠えにすぎない。
His criticism, which he can't level at his boss directly, is nothing more than empty grumbling.
そんなに騒いでも、所詮は犬の遠吠えだよ。
No matter how much you make a fuss, it's ultimately just empty noise.
外から批判ばかりするのは、犬の遠吠えと同じで建設的ではない。
Constant criticism from the outside is like empty boasting and not constructive.