China Naming Network - Ziwei Dou Shu - The origin and meaning of Mr. Bean's name
The origin and meaning of Mr. Bean's name
No, I read a report before, because every time Doudou reads Doudou, his teeth always leak and he can't pronounce. He has been trying to pronounce the word well, but he still can't, so he named it bean, which has made some sense for several years.
I hope it helps you.