This is the official industry terminology thread. Feel free to add your own below.
One Way Trip - What happens on a shuttle coaster when the train fails to return to the station. See Valley.
Fixed to love Up Ratio - The rate of items fixed vs the items that are in a state of disorganization or disrepair.
Stupid Ass Backwards - When the person in charge repeatedly chooses to do things in uncommon or elaborate way resulting in chaos, riot, and/or dismal failure.
Short Stop - What happens to a train that comes into the final brake run after the E-Stop has been activated. See Painful.
Super Stack - When you have stacked up multiple trains to a point that one is stranded in a MCBR.
Skip Block - What happens when a train blows through a block segment regardless of the brakes position is open or closed. Generally bad.
Valley - Getting a unit stranded in between one hill and another. Mr Bill is going to be winching all night.
Trim Brake - The device that increases a maintenance budget by 25% and causes coaster enthusiast to whine. Also causes rides to operate below their normal performance profile.
The Bar - Where you can find the operations team on a Friday night.
Elbow Grease - What you send new-hires to look for on their first day.
Racing the Clock - How you run at maximum capacity by dispatching the second the next block is clear.
Steel Rain - What happens when your train comes back with less bolts then it left with.
Height Stick - Device primarily used for enforcing a rides height requirement but has also been known to be used for;
Beating Guest
Unlocking Restraints
Testing PX Switches
Crowd Control
A Lightning Rod
A Replacement Fuse
A Dildo