I Want to Know the Story Behind Your Username

Lullacus... I use it for both my online names and my gamer name, because I haven't come across anyone else with the same username. Where it comes from however is Fallout: New Vegas. If you join the legion in Fallout: NV there is a guy you have to go meet at Cottonwood Cove. His name is Cursor Lucullus. I misread and thought it was Lullacus.
Even after I noticed that I misread, I kept using Lullacus, because I like it and find it unique.