trash-talking

American  

[trash-taw-king] / ˈtræʃˌtɔ kɪŋ /

Or trash talking

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.

---

Etymology

Origin of trash-talking

An Americanism dating back to 1985–90

Example Sentences

However the trash-talking American was adamant on Friday that he has the tools to stop Joshua as the two men faced off in a promotional event for next month's Netflix special.

From Barron's

“When I came, I was probably a little more quiet, trying to get to know people. But right now, I’m just being myself, just joking around a lot, trash-talking. So I think one of the biggest things for the team to win is have a great chemistry, and I think we have that.”

From Los Angeles Times

A Milwaukee Brewers fan was reportedly let go from her job after a viral video showed her threatening to “call ICE” on a trash-talking Los Angeles Dodgers fan during the Brewers’ home loss on Tuesday.

From Salon

Their trash-talking, hard checking, and ability to goad rivals into losing their cool on the ice is actually a point of pride.

From The Wall Street Journal

Instead we think of male bonding, of office pools and water-cooler chats, of the good-natured trash-talking that comes with fantasy leagues, of long-standing tradition.

From Slate