A person who is beyond garbage, they have done something really crappy and need to be told how much they suck; but garbage does not cut it so Geebage is used to show how much they suck at life.
Antaeus- “I can’t believe General Marnes is dead”
Phileas- “I know, right? Now get everyonetogether for a Group Greekage and we’ll all have some dope gay sex”