back in the day
Meaning
back in the day
(temporal location, idiomatic, informal) In the distant past; especially, at a time fondly remembered.
Synonyms: at the time, at that time, then, back then
back in the day
(temporal location, idiomatic, informal) In the distant past; especially, at a time fondly remembered.
Synonyms: at the time, at that time, then, back then