[GeeTwo]

Arena (n): A structure in which every dimension that matters is constructed outside the tolerances specified in the field drawings (see Bistromathics, recipriversexclusion)
Water Game (n): The universal solvent solution for game hints according to a variety of CD posters.
Offseason (n): A fairy tale told to help keep rookies going for a few more hours.
Game Reveal Day (n): FIRST's answer to Mardi Gras / Carnival / Shrove Tuesday / Pancake Day. That is, it is the last, greatest celebration which precedes a six-week season of penitence and self-denial.
Stop Build Day (n), also known as Bag and Tag: Another fairy tale told to help keep rookies going for a few more hours when "Offseason" seems too far away.
masochist (n): within the FIRST context, a null descriptive term for a person.
Working Sensor Software (n): A product delivered by the program team which ensures that the sensor will be mechanically damaged beyond repair, and possibly replacement, in the immediate future.
CIM (n), also called CIM motor: the most robust container for blue smoke allowed in FRC.
RoboRIO brownout (v, n): The GDC's alternative to limiting the number of motors allowed on a robot.
Team Q&A (n): The GDC's means of injecting requirements drift into even the most disciplined development processes.
Practice Field (n): A facility at an FIRST competition which is only available when your team is scheduled to be in the queue or a match.
Game Reveal Video (n): The earliest and most reliable information as to how each season's game will not actually be played.