Someone with a love of things (art, literature, clothes, architecture, etc) that are old-school, traditional, vintage, or simply charmingly old-fashioned.
It can include a love for any past era... be it the Tudor age, the Victorian era, or the 1980s.
A portmanteau of retro and romanticist.
"So are you an old fogey, conservative, reactionary, or what?"
"I'm simply a retromanticist, m'lady."
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"