1. Insulting or boastful speech intended to demoralize, intimidate, or humiliate someone, especially a sporting opponent or in online gaming
   "The boxer's trash talk before the match was meant to psyche out his rival"

1. Engage in insulting or boastful speech to demoralize, intimidate, or humiliate someone, especially a sporting opponent or in online gaming
   "He trash-talked throughout the game, trying to get under his opponents' skin"

Derived forms: trash-talking, trash-talked, trash-talks, trash talks

Encyclopedia: Trash talk