His parents call him so that he doesn't like it and must be reckoned with. I do not like it, it means he is ashamed of his nickname. Will go to school, peers will tease, do they need it? From childhood one must respect, then an adult will not have to go to a psychotherapist, treat complexes. IMHO
In 2013, the figure skater Evgeni Plushenko had a son, who was named the Gnome Gnomych. However, this is only a nickname, and not the name itself, he received it due to the fact that he was born quite small - weighing only over 2 kilograms.
There were many questions and assumptions about why he was named that way, but the figure skater's son himself gave the truthful answer: once he was invited to a show in which show business celebrities are "brought out". The presenter asked the boy a question about his nickname, but he refused to answer why he was called that, adding that he did not like it.
I don't like it because gnomes are small. Thus, it is likely that the reason for such a nickname lies precisely in the size of the child at birth.