my son

Refers to the person one is addressing, when giving caution or advice, indicating that the person is inferior in some way. It does not necessarily refer to a relationship.

Japanese Meaning

注意や助言を与える際に、相手に対して相手が自分より劣っているというニュアンスを込めて呼びかける表現。必ずしも実際の親子関係を示すものではなく、軽視や優位性を示唆する目的で使われる。

What is this buttons?

Listen here, my son: if you keep taking risks like that, you'll regret it.

Google Translation / DeepL Translation

よく聞け、坊や。そんな危険なことをし続けると、きっと後悔するぞ。

Details

Sense（1）

Refers to the person one is addressing, when giving caution or advice, indicating that the person is inferior in some way. It does not necessarily refer to a relationship.