What does fatty mean?

Name: Fatso Birthday: March 20th Gender: Male Constellation: Pisces Hobbies: Intelligence Games, birthplace of study: Changsha, Hunan Personality: simple and honest, steady, knowledgeable and full of gentlemanly demeanor. Yearning for: To be a cartoon starring computer experts: humorous series, Star Wars series, ocean series, Olympic series and aerospace series of "The Three Thousand Questions of Blue Cat Naughty". Specialty: Computer, invented dubbing: Wenjun Yuan, Nie Tongshan, Song Xiaoyu. Fat children: fat arms, round belly, simple and honest, knowledgeable, polite and very gentlemanly. People call him "Little Doctor". He is often immersed in his own research and doesn't know what is going on around him; Gentleman but rather prim; Like to make small inventions, their small inventions can often surprise people, but they also have unexpected flaws. In the new series, Fat Man studied its internal structure in a strange spaceship and mastered the spaceship technology step by step. He dreams that one day he can build a perfect spaceship, where he can be with naughty blue cats day after day.