How long have you been sitting on that?

When my son was 1 year old he'd make a Vader breathing noise whenever he was really interesting in something. I used to call him Darth Curious.

How long have you been sitting on that, Darth Haemorrhoid?

How do the sith come up with these names anyways?
Are they always given by the master?
And what is the reason for doing this at all?
What does Darth Vader even mean?
- After some googling, it doesn’t really seem like there is a lore/in universe explanation, which I find surprising after having the Disney EU and the legends EU. Some sith are named after a character quality, so maybe you could assume the dark side of the force revealed it to the master that named them?
- Darth is dark in German. Vader is Dutch for father (Vater is German for father).
  George Lucas actually named Darth Vader. The content in the movies is made up.
  “Dark Father”; he was given the name for fairly obvious reasons by George Lucas I would think.
  
  The content in the movies is made up.
  You've gone too far. Take that back right now.
  
  I have never seen "Darth" or anything similar used to mean dark in german. If that's a thing it's something both old and obcure.
  
  A common story, but not true. When Lucas was filming Star Wars he hadn't yet had the idea that Vader was Luke's father, hence the clumsy retcon about Vader killing Luke's father 'from a certain point of view' in Return of the Jedi. Vader is just shortened 'invader', the dutch translation is just serendipity (or proof that the force is real).
  
  So it means Black Daddy?
  
  So I looked into this more and basically Darth is a title given to sith lords, others have had it like Darth tyranus and Darth sidious, but here is the kicker.
  Darth Vader's fatherhood was only conceived of after the character was introduced in empire strikes back, so the name was not necessarily related to fatherhood in the story and the only reason I could think of for it existing is just because it sounded cool.
  A possible reason could be that Darth is a combo of dark and death and Vader is possibly short for invader.
  Otherwise I'm not sure if there is any clear reason for the name that is undeniably the reason for the name.
  
  I hate it when people act like this. You know there is a mythology in Star Wars and you know that is what people are discussing but instead you are taking a meta shit over everything. Find a better hobby.

Sith pick a non-evil sounding name challenge (impossible)
- But... That's like the whole point... No?
  Like, imagine if a pope called himself Larry, just "Pope Larry", instead of picking the name of a saint
  
  Maybe to the audience, but do the Sith believe they're evil? Does any evil person? Everyone is the good guy in their own story.