many moons ago

US /ˈmɛni muːnz əˈɡoʊ/
UK /ˈmɛni muːnz əˈɡoʊ/
"many moons ago" picture
1.

a long time ago

:
Many moons ago, I used to live in a small village by the sea.
We first met many moons ago at a college party.