Haven't seen you in a month of Sundays spoken informal
It's been a long time since I saw you.
Hi, Mary, haven't seen you in a month of Sundays! How are you doing?
Oh, hi Dave...Haven't seen you in a month of Sundays! We miss you very much.
Said when you want to shake hands with someone as a greeting or an agreement
Used to ask someone to send or deliver your greetings to someone else
A Way of saying "hey" or "hello", used as a greeting or to get someone's attention
This phrase is often used in the case of avoiding greeting someone first when seeing him/her on the street.
What is happening? How are you doing?