無駄口をたたく

むだぐちをたたく

Also written 無駄口を叩く

Meanings

1. Expression, Godan verb to chatter pointlessly; to waste one's breath

Kanji

• 無 without. Read as ム.
• 駄 useless
• 口 mouth. Read as くち.

Jinuma: Japanese Dictionary · Word lists