My username is GRuban, and capitalizing the R matters. Capitalized, it's the first letter of my first name (George) and my last name, which is a fairly common way of making an email alias, and I used it for multiple workplaces and websites, including Wikipedia, for years, without noticing anything. Then a friend pointed out that all lower case and in Russian (my other native tongue), it's a slightly old fashioned term meaning a rude male person.
And now I can't forget it. It's basically The Game, but just for me.
You have to type the Cyrillic into Google Translate, then it says "coarse", which is close but doesn't quite capture all the nuance. --GRuban (talk) 18:47, 14 July 2018 (UTC)