talk trash

US /tɔk træʃ/
UK /tɔk træʃ/
"talk trash" picture
1.

hablar mal, provocar, fanfarronear

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.
Siempre habla mal de sus oponentes antes de un partido.
Don't talk trash if you can't back it up with your actions.
No hables mal si no puedes respaldarlo con tus acciones.