1 definition by I am the best mane, I deed it.

Acting like something old (a movie, piece of music, tv show, videogame .etc) ceased to exist and can't be accessed anymore. Most commonly seen in comment sections of old videogames on Youtube.
I "USED" to love this game
This game "WAS" good
I miss this game
Examples of nostalgiafagging
Get the nostalgiafagging mug.