/C-L-M/
[Sun: 'Career Limiting Move']
1. n. An action endangering one's future prospects of getting plum projects and raises, and possibly one's job:
"His Halloween costume was a parody of his manager. He won the prize for 'best CLM'."
2. adj. Denotes extreme severity of a bug, discovered by a customer and obviously missed earlier because of poor testing:
"That's a CLM bug!"