An acronym commonly used in the workplace to define a 'career limiting move'.
Michael got up and left the room while the managing director was speaking.
Justin - "oooh, that's a CLM right there"
Basically a shit sandwich
served up at your work by a senior manager, who calls it a 'development opportunity' to relieve their conscience as they should be performing this task themselves.
Manager - "I have a development opportunity for you, could you please do (insert mundane task here)?"
You - "Fuck!"