Definition: Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.
Input: A word for the unexpected reaction of laughing in a situation of complete hopelessness or laughing with sad undertones.
Output:
Gallows humor is 'humor that treats serious, frightening, or painful subject matter in a light or satirical way.' It has the connotation of someone laughing at their own execution. Urban Dictionary actually has a good summary: gallows humor Sense of humor that arises from stressful, traumatic or life-threatening situations where death seems to be an inevitability. Different from black humor in that comments of this sort are made by the person/persons affected (i.e. about to die). It is not always used to mean that the person is facing literal death, but the idea is the same. They are expressing amusement or using humor in the face of their own inevitable fate.