wisecrack

noun wisecrack

• witticism — a witty remark or sentence.
• riposte — a quick, sharp return in speech or action; counterstroke: a brilliant riposte to an insult.
• gibe — to shift from one side to the other when running before the wind, as a fore-and-aft sail or its boom.
• retort — to sterilize food after it is sealed in a container, by steam or other heating methods.
• gag — to introduce usually comic interpolations into (a script, an actor's part, or the like) (usually followed by up).