"The power of this epithet has grown so much that it now covers a much wider range of behavior than the purely sexual reference that it connoted in the past. The term "gay" is now used as a slang term for any form of social or athletic incompetence. Students routinely say to one another "that's gay" when they are talking about a wide array of mistakes or social failures. If someone fails to make the right move on a soccer field or drops a lunch tray in the cafeteria, the kid behind him is quite likely to say, "That's really gay." Why? one fifteen-year-old girl provided an explanation: "Boys have a fascination with not being gay. They want to be manly, and put each other down by saying 'that's gay.'" Thus for boys, the struggle for status is in large part competition for the rank of alpha male, and any loss one boy can inflict on another opens up a new rung on the ladder that he might move into."
January 1, 1970
https://en.wikiquote.org/wiki/Bullying