Definitions by Librarian Mike

Twittletale 

Someone who, when a person is subtweeting, tags the person being talked about into the thread (usually for the purpose of siccing them/their followers on the subtweeter).

Some twittletale tagged my thread and now I have a bunch of randos clogging my mentions calling me a cuck.

Twittletale by Librarian Mike March 16, 2017

Ceterarist 

A fan of Peter Cetera and/or Chicago, like how a 'Fanilow' is a Barry Manilow fan.

My fiancee wants "You're the Inspiration" as our wedding song. She's a total Ceterarist.

Ceterarist by Librarian Mike June 6, 2011

Friender's Remorse 

The feeling you get when you 'friend' someone on Facebook, and that person spams you with dumb games or posts a bunch of inappropriate content.

I'm totally feeling some Friender's Remorse ever since Dave started posting racist jokes on my wall.

Friender's Remorse by Librarian Mike February 19, 2011