Noun:a close friend who accompanies his buddies in their activities
buddy的用法和样例：
例句
用作名词(n.)Her driving buddy was in trouble.她的开车伙伴出事了。This is where you get off, buddy.老兄，你在这里下车。Buddy ,you need a litter change of pace.哥们,你要换换口味啦。He and I were buddies at school.他和我在学校是好朋友。用作不及物动词(vi.)You and your neighbour might want to buddy up to make the trip more enjoyable.你同你的邻居或许想结伴旅游，热闹一点。