Aranpō

Aranpō is a Japanese term (荒ん坊) referring to a rough, violent, or unruly person; a rowdy or ruffian. It carries connotations of someone who is reckless, destructive, and likely to cause trouble or engage in brawls. The term implies a lack of control and a propensity for aggressive behavior. It can be applied to both men and women, although it is more commonly used to describe men. The degree of severity implied can vary depending on the context, ranging from simply mischievous to genuinely dangerous. The word can also be used metaphorically to describe something, like a storm, as being "aranpō," meaning wild and destructive. Its etymology is linked to the word "areru" (荒れる), meaning to become rough, wild, or to be in disarray.