Is “birth chart” some stupid astrology bullshit?

I feel like a lot, but people tell me that I don’t have to, but I end up having to do so anyways because they won’t get it if I tell them the short-string version. Then I can tell the other individual is not interested in hearing because the long-winded version has just been bottled up for so long due to people not having been interested before in hearing and understanding the whole picture.