“Apperiantly this word is used in a book about magicians. It probably refers to some sick pig the magicians torture and steal magic from for fun. magicians are disgusting.”
Hogwarts Academy is a party school for mostly rich kids. As such, bullying is tolerated and apparently even encouraged so the future worker bees will know their place. Every term requires class attendance that is always cut short by some event or another, with the excuse being some kind of magical occurrence. Pupils are then excused of doing any work and advance to the next grade, older but stupider. Thus, we have the supposedly magical world we live in today.