Thanks, I've barely used it in that context! (embarrassed)
A smiley face shown wearing a monocle. May be used to describe a fancy situation. https://emojipedia.org/face-with-monocle/
It's a rich old white man, probably sat in old leather armchair and drinking a brandy. I guess you could use it if you thought someone was being pompous and old-fashioned?
What does that emoji actually mean?