Hikikomori anxious youth who have completely withdrawn from society, even locking themselves in their bedrooms for years at a time
ひきこもり:社会から完全に閉じこもり、時に何年も部屋に閉じこもってしまう心配な若者
Herbivores grazing, passive young men who care more about their looks than their careers
草食系男子 キャリアよりも外見を気にする草食系、受け身な若い男性
Parasite singles young adults who, even if they have good jobs, live at home to avoid paying rent and rely on their parents for food and laundry so they can use their disposable income for frivolous purchases.
Amakudari literally means "descent from the heavens," retiring government officials often take on top jobs at companies, some of which they were once charged with regulating.