We used to say, “Way back when...”
Now you have 22-year-old mutton-heads on the tube talking about “back in the day...”
What do they mean, last Thursday?
My short list:
“Roger that”
Anything that turns a noun into a verb, especially “gifting”
“Reach out”
Epic
Game changer
Utterly destroyed
Narrative
Walk back
There are many, many more.