scoundrel,
villain a wicked or evil person; someone who does evil deliberately
Verb
blackguard -
subject to laughter or ridicule; "The satirists ridiculed the plans for a new opera house"; "The students poked fun at the inexperienced teacher"; "His former students roasted the professor at his 60th birthday"
debunk,
expose expose while ridiculing; especially of pretentious or false claims and ideas; "The physicist debunked the psychic's claims"
stultify cause to appear foolish; "He stultified himself by contradicting himself and being inconsistent"
blackguard -
use foul or abusive language towards; "The actress abused the policeman who gave her a parking ticket"; "The angry mother shouted at the teacher"
