Might be bad, but is also mimicking reality. I feel like naming people with their main "something different from others" is very common in France, Japan and maybe around the world.
All the smiths, boucher (butcher), legrand (bigguy), charpentier/carpenter, and a myriad others tell us its extremely common.
Is it well used here? maybe not, but Lügner probably named himself as a cunning joke. Or the demon naming him was a joker. I don't know how demons get a name in that show. I'd like they name themselves, funnier in the context of what we're discussing :-)