back in the day 

Completely meaningless phrase which has gained mysterious global popularity. It means "Once, I..." or "I used to..." but is uglier and lazier. Similar to the equally meaningless "at the end of the day..." popularised by English soccer stars.

Back in the day, I used to be younger.

I was a child once, back in the day.

back in the day by hunthill September 13, 2008

Back in the day 

Completely meaningless phrase which has gained inexplicable global popularity. It's an incomplete thought: Back in what day? It's a redundant way of saying "Once, I..." or "I used to..." and adds words without adding any extra meaning. Similar to the equally pointless "at the end of the day..." popularised by English soccer stars.

Back in the day, I used to be younger.

I was a child once, back in the day.

Back in the day by hunthill August 18, 2006

back in the day 

A colloquialism used to describe a point in time, specific or otherwise

Person A: I found some old records in an antique store the other day; made from vinyl and everything.
Person B: What are records?
Person A: They're how people listened to music back in the day before CDs and radios.

back in the day by Ryan Clark Jr. September 23, 2017

back in the day 

Old School, really old, classic

We be pimpin' like mac daddies back in the day!

back in the day by Arasset October 4, 2003

back in the day 

Saturday, October 6, 1979.

Back in the day, I could dance all night.

back in the day by mandingoe August 23, 2004

Back in the Day 

Referring to a time period, at the very least, 2 years ago.

Guy: Remember that baby you had back in the day?
Girl: You bet I do. That was like 2 years ago.

Back in the Day by T_Thisse May 27, 2011

back in the day 

A pretentious phrase some people use to signal approval for previous irresponsible conduct while avoiding references to the consequences of conduct they learned by necessity to avoid.

Back in the day we drank gallons of liquor and battered anyone we did not like.

back in the day by Shmata Than August 16, 2017