悪口を言う
(人に向かってなら)to abuse one―revile one―rail at or against one―call one names―call one by hard names―make insulting remarks―(蔭でなら)―speak ill of one (behind one's back)―backbite one―stab one in the back―talk against one―whisper against one―calumniate one―slander one―make malicious remarks―throw dirt at one―pick one to pieces―pull one to pieces―talk scandal―make free with one's fame―take liberties with one's reputation
悪口を言うこと
陰で悪口を言う
to speak ill of one in one's absence―abuse one behind one's back―stab one in the back―backbite one―whisper against one
悪口を言うことが好きな人
いろいろと悪口を言うこと
to utter wild words―break out into violent language―lash out into violent language―(人に向かってなら)―rage against one―rave against one
口汚い悪口を言う