That...doesn't sound right, namely because Wash is the only person on the ship who calls Reaper Ghostface and he's pretty sure he hasn't done it in front of Azucar before today. Reaper's kind of notorious, he's seen Azucar on the anon meme at least once and anons love talking about his so-called relationship with Reaper, and there are public dossiers available - how does Azucar not know who he is?

Now's not the time to explore that train of thought in depth. He can still ask the question, but it needs to be couched in curiosity, not suspicion. "Wait, how do you not know his name? He sticks out, and he has a reputation."