"Empowering Advanced Learners of English in Business and Academia - TOEFL / ESL / EFL"
Refers to a time in the recent past when things were different of better.
Context : Social Life
Semantic: history, nostalgia
Video example (click "CC" to view the text as it is spoken)
This idiom conveys a sense of nostalgia.
Usage of “back in the day”
Back in the day, we used to play music on the street corners and make good money.
I remember her from back in the day.
Examples of idiom “back in the day” from Twitter
I'm going to be in Tesco by 8am. That hasn't happened since back in the day when I worked for a living.
@johnnyeponymous Dude! No way! There's still Farrell's parlors? I remember many a birthday party here in Phoenix back in the day!
tisha campbell was soo badd back in the day...sooo badd, that i would still give it to her TODAY just off of general principal
Montell Jordan= back in the day when rappers could actually speak english lol
back in the days when i was young, im not a kid anymore, but some days i sit and wish i was a kid again