Ferlerberger is a word that is used to someone that was once something then forgot what it is to be like that. For example: If an old man yelled at a boy for something that boys do the man would prove he was a ferlerberger by forgeting that that is what boys do. for he was once a boy.
A FunderBerger Party, as originally conceived by Jacob Funderberger of Southern California, is when a group of friends organize a fake party in order to impress or make jealous those around them. This is best accomplished by planning the details of the party out loud and in public (school, restaurants, and stations of public transport) so that it seems real to those not involved. Members of the Funderberger Party are made aware of the fact that there is no party when they are repeatedly asked by other members if they will be attending. This covertly indicates to a member the fact that it is a Funderberger Party, and not a real party, without alerting others to the joke.