old cock（旧时表示亲昵的称呼）老兄；老朋友

【例句】
Why aren't you in Berlin, old cock? And how's that magnificent wife of yours?
你怎么不在柏林了，老朋友？你那风度翩翩的夫人好吗？

Why are you in london，old cock？
嘿，老兄，你怎么在伦敦呢？