A witty reply is a clever and humorous response to a comment or situation. It can be expressed in various forms, such as a RETORT (6 letters), which is a sharp and often sarcastic reply; a REPARTEE (8 letters), which is a quick and witty exchange of remarks; a RIPOSTE (7 letters), which is a quick and clever reply to an attack; a SALLY (5 letters), which is a witty remark or joke; and a QUIP (4 letters), which is a clever and often sarcastic remark.