Verb
trash talk (third-person singular simple present trash talks, present participle trash talking, simple past and past participle trash talked)
Alternative form of trash-talk
trash-talk (third-person singular simple present trash-talks, present participle trash-talking, simple past and past participle trash-talked)
(US) To insult a rival in a disparaging way.
trash-talk
He could trash-talk your ears off! Source: Internet
That entitled child is annoyed at anything produced by Apple, even inventing trash-talk & self-styling pseudo-expert "experiences". Source: Internet