Calling himself "Donkey" instead of a name meant that he wasn't planning to reveal his real name yet, which was an attitude issue and a very clear signal.
Since he had taken the initiative to come to me, there was no point in talking about keeping secrets anymore. The primary intent of giving a nickname was to reveal that he was involved in the underground world.
So the meaning of a nickname was not just to hide a real name, but it also functioned similarly to slang or secret code. When someone gives a nickname, Gao Guang should know that the person coming to him definitely wasn't planning to discuss anything aboveboard.
Getting back to the nickname itself, donkeys are normal enough animals, but "Donkey" isn't exactly a nice word in the English language.
Then, for some reason, when Gao Guang heard the nickname "Donkey," he suddenly felt a liking for the short, chubby man in front of him.