trasher

/træʃər/
noun
  1. A person who destroys or damages property, especially violently or as part of a protest or riot.
    • The trashers broke windows and overturned cars during the demonstration.
    • The stadium was left in ruins by trashers after the championship game.
    • Police arrested several trashers who had vandalized the downtown shops.
  2. A person who criticizes or speaks badly about someone or something (informal, figurative).
    • Online trashers left nasty comments on the artist's new song.
    • Don't be a trasher — if you don't like it, offer constructive feedback.
    • He's a constant trasher of other people's work, but never offers his own ideas.
Antonyms
What does "trasher" mean? | whatsthatwordmean | whatsthatwordmean