WHAT: "A name typically given to the male viewers/fans (whether they are straight, gay, bisexual, etc.) of the My Little Pony show or franchise. They typically do not give in to the hype that males aren't allowed to enjoy things that may be intended for females." - Definition of "Brony"
If you did not know the term before, hope this makes it clear now, yeh? Hence the release and by-now-Sold-Out