陰口

かげぐち

malicious gossip, backbiting, speaking ill behind someone's back

無駄口をたたく

むだぐちをたたく

to chatter pointlessly, to waste one's breath

陰で悪口を言う

かげでわるくちをいう

to insult someone behind their back

口をきく

to speak; to talk

口を利く

くちをきく

to speak, to utter

口を開く

くちをひらく

to open one's mouth (to talk)

尻をたたく

しりをたたく

to encourage to do (something), to urge a person on, to demand action

門をたたく

もんをたたく

to knock at the gate

陰で糸を引く

かげでいとをひく

to pull wires, to pull strings

糸口を開く

いとぐちをひらく

to find a clue, to make a beginning

口笛を吹く

くちぶえをふく くちふえをふく

to whistle

タメ口をきく

タメぐちをきく

to talk casually; to use one's peer language (to others)

大口を叩く

おおぐちをたたく おおくちをたたく

to boast, to brag, to exaggerate

軽口を叩く

かるくちをたたく

to crack jokes

陰陰

いんいん

forlorn, dark and desolate

口当たり

くちあたり

taste

悪たれ口

あくたれぐち

abuse, insult, slander, evil speaking

箝口令をしく

かんこうれいをしく

to impose a gag order, to hush up, to order someone not to mention something

突破口を開く

とっぱこうをひらく

to make a breakthrough, to break ground