"Commit hara-kiri" refers to a traditional Japanese form of suicide by disembowelment, also known as seppuku. Due to the gruesome and violent nature of this act, it is not appropriate to use this term in a casual or humorous manner. Instead, alternative phrases such as "take one's own life" or "commit suicide" can be used to discuss the topic more sensitively. Additionally, it is important to remember that suicide is a serious issue and those struggling with suicidal thoughts should seek help and support from a mental health professional or crisis helpline.