trash-talking

or trash talk·ing

[ trash-taw-king ]

noun

1. the act of using disparaging or boastful language, especially to demoralize or intimidate opponents:

   Taunting, trash-talking, gloating, and cheap shots have become all too common in sports.

Word History and Origins

Origin of trash-talking¹

An Americanism dating back to 1985–90

Example Sentences

There was also no equivalent trash-talking of Russia and its recent controversial actions in Ukraine.

From The Daily Beast

Imagine trash talking your family, your employer, or your country on national television--in a language that none of them speaks.

From The Daily Beast

Hands on buzzers: One's a trash-talking thug trying to stay one step ahead of the law.

From The Daily Beast