What does the green monkey mean by fortune telling?

I don't thank my parents for their parenting, and I don't care about brotherhood. In my hometown, the word "green monkey" is used to describe that I don't thank my parents for their upbringing and don't care about my brothers. The green monkey is a family of green monkeys among primates. Night monkey (scientific name Aotus), also known as owl monkey, is the only juvenile monkey genus in the New World, which is divided into 8 species. They are mainly distributed in forest areas of Central America and South America.