A snappy comeback is a witty or clever remark made in RESPONSE to a comment or question. It can be an ECHO, which is a repetition of a sound or phrase, a RIPOSTE, which is a quick, witty reply, a RETORT, which is a quick, often angry or sarcastic reply, a MOT, which is a clever or witty remark, a REBUTTAL, which is a RESPONSE that refutes an argument, a REPARTEE, which is a witty exchange of remarks, or a RESPONSE, which is an answer to a question or request.