So yesterday phrase
The “so” in this phrase, which dates from the late 1900s, means “extremely” or “completely.”
Extremely dated; no longer modern, fashionable, or fascinating.
Your report is unreliable because the data that you analyzed is so yesterday.
That expression is so yesterday! The last time I heard it was when I was a little kid.
The machines used to make these sweets are so yesterday.
A way of response to outdated news
An old-fashioned pub.
To be out of date, not be used for a long time.
Used to refer to an old person who is boring and old-fashioned
The origin of this phrase is not clear.