A person who insists they were using Facebook back when it was limited to college students, implying he/she was at some time more awesome than others currently using Facebook. This is usually followed by a vague comment reminising about the good ol' days.
Jane: "My great aunt Bertha tagged me in her Facebook pictures from paintball last Saturday."
Jill: "Ugh, EVERYBODY is on Facebook. I remember when Facebook was for college students only. Those were the days."