expression, godan verb (-ku)
spew venom; say nasty things
Idiomatic expression for speaking harshly, maliciously, or bitterly about someone or something. Often used when someone is venting anger or resentment.
彼は会議で上司に毒を吐いた。
He spewed venom at his boss during the meeting.
SNSで毒
You should stop saying nasty things on social media.