Most of the people on this website, Ugh69, are Brits "of mature years", whom I suspect have simply never heard of the word you mention. (I suspect that might be more commonly heard among younger people and/or Americans).
Definition (or, rather, an assortment of definitions) here for anyone who needs some explanation:
https://www.urbandictionary.com/define.php?term=Anygays
However I doubt that you've caused anyone offence. It's probably akin to when I first started working alongside blind people. I always wanted to kick myself when I said something like "Do you see what I mean?" or "I'll be seeing you later", as I thought that my 'sight' references were inappropriate. I quickly learned though that they were nothing or the sort; I suspect that you're similarly being edgy about the use of certain words but without any reason at all.