Now, I don't want to correlate the insult word, 'faggot', with the legal non-insult word, 'fagging'. However, they might have a real close history!
https://en.wikipedia.org/wiki/FaggingThe word fagging, was a traditional practice in private and boarding schools.
Younger pupils were to take the role as PERSONAL SERVANTS of senior pupils.
Perhaps, servantide might be something more. <3
It's a bit like squire and his knight back in the Middle Ages.
Rumors say that fagging can lead to homosexuality and prison rape! :D
Fortunately, or at least said, the school rules only use this practice as discipline.
Nowadays, it's just your school community thing.
Then again, maybe not. Maybe it's a private thing for us boys.
I wonder if those anime/manga gimmicks do employ this specific practice into their stories? Probably they would. Senpai and kōhai; Sensei.