Synonyms of slag off

verbTo talk insultingly to or about someone or something; usually one who is not present.

• abuseTo attack with coarse language; to insult; to revile; malign; to speak in an offensive manner to or about someone; to...
• insult
• slurTo insult or slight.
• affront
• burn slang
• carry slang
• cut down
• disrespectTo show a lack of respect to someone or something.
• dis informal
• diss informalTo put (someone) down, or show disrespect by the use of insulting language or dismissive behaviour.
• give stickTo abuse, insult, or denigrate.
• heckle
• hurt someone's feelingsTo offend or emotionally hurt someone.
• lapidate
• qualifier
• misrespectTo show improper respect to or for; disrespect.
• offend
• send UK, slang
• scandalize
• slag UK, slangTo talk badly about; to malign or denigrate (someone).
• sledge Australia
• slight
• sneap dialectal
• spiteTo fill with spite; to offend; to vex.
• woundTo hurt (a person's feelings).
• misbid obsolete
• misuse obsolete
• scandal obsoleteTo scandalize; to offend.