Ive seen this term a few times, but never an explanation. As a person that (mostly) associates themselves with being Bi, ive never experienced any sort of “cycle”. Its it just an internet injoke (cause it sounds like bicycle).
Definitely! Humans are a bunch of individuals with one of a nigh-infinite combination of thoughts and experiences, so even if people can come to an agreement on what an abstract term means, there’s still a high chance that there is some minor aspect where they have a slightly different understanding on the matter. Admittedly, I don’t know for sure what it’s like for vampires and Barovian nobility, but I have a feeling it’s a similar case ;)