B2idiominformaltimeIELTS-friendly
back in the day
USUK
in the past, often a time you remember fondly
Informal and conversational. In writing, use 'in the past' or 'years ago'.
In context
Back in the day, we had to queue for hours to buy a train ticket.
My dad says he was a great footballer back in the day.
More idioms about time
- a blast from the pastsomething or someone that suddenly reminds you of an earlier time
- a long time comingif something is a long time coming, people have waited a long time for it
- a matter of timecertain to happen, although you do not know exactly when
- a race against timea situation where you must hurry to finish before time runs out
- a sign of the timessomething that shows how society is now, often in a bad way