Back in the day (aka my sophomore year of high school, only four years ago), one of my friends set up an RP and wanted me to join. I needed to name my character so I looked up baby names online. One of the websites claimed that “Reiko/Leiko” meant “arrogant” in Japanese. I modified the pronunciation to rhyme with Lekolite, as the character wasn’t Japanese, just arrogant- and I’m a theatre nerd.
Since I recycle names, Leiko ended up running a café in a small town in another RP. Then she was the snobby kid in a Hogwarts RP, making fun of Muggle-born Cyn (one of my other heavily reused names) and her robot monkey that only worked sporadically due to the magical interference with his circuitry. (Can’t remember his name, sadly, but if I ever write the evil mind-control closet story, he and a “sibling” night appear.)
Then I remembered that I didn’t actually like RP’ing that much, and didn’t have any unused plots for stories (that would never get finished but I always start) kicking around that needed female characters, so I grabbed the name from myself to use online- I wanted one that actually sounded like a real life name, as opposed to the screen name sound of my other two main screen names.
As a plus for when I’m on a privacy kick, it has a variety of not-me Google results, unlike one of my main internet names which is all-me results, or the other, which results in one third “me,” one third “could be me, but isn’t,” and one third “LJ profiles of people in an RP where one of the characters has the username I normally use.”
(With the Lekolite-rhyme, I sometimes get on a lighting theme. When I do play Puzzle Pirates, which isn’t often, my main character is Leiko, one of the alt characters on the account is Fresnel, and Fresnel’s rat is named Gobo. Leiko’s is named Rat, because I’m weird.)