sarcastic; verbally nasty and mean; using nasty and mean language
He expressed his contempt for the speaker by making sardonic comments throughout his lecture.
abrasive, caustic, sardonic, trenchant, vitriolic, vituperative
think of SARDONIC as SARCASTIC + IRONIC sorry to comment but. remember sardarji always people mock at them making jokes. so remember as sardonic saridon (famous medicine for headache in India): If everybody around you criticise you, then you will get headache. take saridon