The words ‘my old man’ are American slang sometimes used by a person to describe their father. It might less often be used by a woman to refer to her husband or boyfriend. ‘Old fashioned’ refers to dressing or doing things in a way that was popular a long time ago.
我老爹是個老骨董—很守舊呢！
在這句美式俚語中 my old man通常指「老爸」而言；較少拿來指「丈夫」或「男朋友」。Old fashioned 可用來形容衣服款式（或做事方式）老舊、不合時宜。