These terms are not listed in the official Icehouse Handbook, but are nevertheless in fairly common usage by Icehouse players.
Submissions are welcome.
Crash Trap A space on the field that appears to big big enough to hold a piece, but, most often, is not. Any player trying to place a piece into the space will most likely crash. Some crash traps arise naturally from play, but others are created puposefully to try and get more prisoners into the game. The practice of using a piece of string or thread to check the aim of an attack. This call is usually used to get the attention of tournament judges, who usually carry pieces of white thread around with them.