A wisecrack is a clever or witty remark, often delivered with a touch of sarcasm. It typically involves saying something that sounds serious but is actually meant to be humorous or ironic. Wisecracks can lighten the mood in conversations, but they may also be misunderstood if the listener doesn't catch the sarcastic tone. Sarcasm, the underlying tone of many wisecracks, is a form of verbal irony where someone says the opposite of what they really mean. This can be used to mock or convey contempt, making it a nuanced form of communication. While it can be entertaining, excessive sarcasm may lead to confusion or hurt feelings among those who take the comments literally.