Say hello for me asks somebody to greet another on your behalf. Say hello for me when you see her.
It is the warm and informal version of give my regards. It works only when the two people actually know each other.
1phrasesay hello for meAsk somebody to greet another on your behalf.
“Say hello for me if he is still on that ward.”
say hello for me is a phrase.
Practised in Small Talk & Everyday Phrases