talk trash
US /tɔk træʃ/
UK /tɔk træʃ/
1.
悪口を言う, 挑発する, 自慢する
to speak badly or insultingly about someone or something, often in a boastful or provocative way
:
•
He always talks trash about his opponents before a game.
彼は試合前にいつも対戦相手の悪口を言う。
•
Don't talk trash if you can't back it up with your actions.
行動で示せないなら悪口を言うな。