trash-talk

[trash-tawk]
Related formstrash-talk·er, noun

trash-talking

or trash talk

[trash-taw-king or trash-tawk]
noun
  1. disparaging or boastful language used especially to demoralize or intimidate opponents: trash-talking in the locker room.

Origin of trash-talking

An Americanism dating back to 1985–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018