Sarcasm

This character often makes sarcastic remarks.

Sarcasm is “a sharp, bitter, or cutting expression or remark; a bitter jibe or taunt.” Though irony is usually the immediate context, most authorities sharply distinguish sarcasm from irony; however, others argue that sarcasm may or often does involve irony or employs ambivalence. Sarcasm has been suggested as a possible bullying action in some circumstances.