I’m not sure exactly where the term spectrum banging came from—my friends and I used it in college, I have a feeling someone made it up. Google doesn’t seem to use it the way I do.
I find it a useful concept, though, and use it frequently. Spectrum banging is when you go from one end of the spectrum to the other so fast and furiously that you bang yourself against the other end.
For example, you date someone who is a little bit loony tunes, and that ends badly, and the next person you date is a completely uptight and prim-and-proper. Spectrum banging.
Or, you come out of the closet and come to your queer identity in college, suddenly away from your birth family unit and able to explore yourself, and you completely cover your dorm room in rainbows, and exclusively go to gay bars, exclusively watch gay movies, exclusively listen to gay music, etc etc. Spectrum banging.
I’ve used this in lots of other examples, too, not just sexuality or dating. I was just discussing it last night in some of the aftercare and fallout from d/s, and the ways my own triggers cause me to spectrum bang and have really strong reactions (that are sometimes too strong).
I tend to be pretty resistant of the concept of spectrums in general—I think things are usually more multi-faceted than a binary, usually at least three if not a whole galaxy. But often the reaction to something is specifically a spectrum, and we tend toward the opposite, perhaps so far unable to see the other possible paths or responses.
Sometimes, there is a sense that where you “should” be on the spectrum is somewhere in the balanced middle—but that is not necessarily the case. Sometimes banging the spectrum can result in the spectrum becoming bigger (or 3D, or some other format), and perhaps that “banging” is actually where you—or your friend or ex or whomever—will end up. What spectrum banging refers to is often a phase, sure, but it is also sometimes a real transition, so be careful about the judgment attached to this phrase.
Is this term useful for you? Got an example of this you can think of?