old boy

Britain UK dated

(chiefly Britain) An alumnus, especially of a public school. / A former member of a group. / (UK) An old man. / (UK, dated) A familiar term of address for a man of any age.

Japanese Meaning

（主に英国）卒業生、特に英国のパブリックスクールの同窓生 / 以前は所属していたグループのメンバー / （英国）年配の男性 / （英国、古風な呼称）幅広い年齢の男性に対する親しみのこもった呼び方

What is this buttons?

The old boy network at his alma mater helped him secure the promotion.

Google Translation / DeepL Translation

母校の同窓生ネットワークが、彼の昇進を後押しした。

Details

Sense（1）

(chiefly Britain) An alumnus, especially of a public school.

Sense（2）

A former member of a group.

Swansea named an unchanged side from their win over West Brom, and the visitors made an encouraging start, with Blues old boy Scott Sinclair prominent - Branislav Ivanovic had to make an important block to halt the winger's run.

Google Translation / DeepL Translation