Coined RPG Terminology

This is a list of all the idiosyncratic terms I could think of that I tend to use. Josh helped me with the last two.

Unicorn Trouble: When players know more about how something works than the GM.

Reverse Unicorn Trouble: When the GM knows more about how something works than the player. This can be an issue if, fr'ex, I want to play an excellent horse rider, and Naomi is gming and assumes that I know anything about how horses work.

Retcon: Changing what happened in past sessions of an rpg to fit everyone's sense of continuity, realism, aesthetics, or some combination thereof.

Infodump: A lump of information.

Insert Infodump: Shorthand for actually repeating a lump of information in character, often recommended for when everyone knows it out of character and doesn't want to go over it again.

PC Goggles: Tongue in cheek item that lets users identify PCs, no doubt by letting them see the invisible "PC" tattooed on a PC's forehead.

DIM: "Didn't I Mention...", a phrase used when players have a pool of points or whatever that can be spent after play to buy abilities that the character has "always" had.

Egyptian Gun Syndrome: When the player keeps thinking he or she had his or her character do something, and the GM is equally convinced that the player didn't, and probably should. This was coined when one of my players kept asking how long it would take for his PC to get a gun, and, on being told two days, decided not to bother. Two days of game time later, the player thought the character had a gun, and we had another round of this.

Schtick Dilution: When a power or other special ability of one character becomes more common, usually because another character has the same power or ability, thus making the character less effective and less fun to play.