Same old means nothing has changed since you last asked. Oh, same old, same old story, just the same old.
It is often doubled as same old same old, which is the fuller form. It is answered to a greeting rather than to a real question, and the tone can be content or weary.
1phrasesame oldNothing has changed since you last asked.
“Asked about work he shrugged and said same old.”
same old is a phrase.
Practised in Small Talk & Everyday Phrases