Calibration
The meeting where managers compare ratings so scores are 'consistent' — i.e., forced onto a curve. Your review was written by your manager; your rating was negotiated in a room.
Heard in the wild
“He was rated 'exceeds' until calibration moved him to 'meets.'”
Tone check: Danger
The real performance system. Your manager's ability to argue for you in that room IS your rating.