Monetization
Money Left On The Table
Monkey In The Middle
Monkey Patch
Moonlighting
Moonshot
Moore's Law
Moved The Needle
Moving Forward
Moving Goal Posts
Moving Target
Moving You To BCC To Spare Your Inbox
Muddy The Waters
Multitask
Muscle
Mutual Action Plan
My Calendar Is Up To Date
My Concern
N=1
NASCAR slide
NBU
NDA
Need It Done Yesterday
Needle Mover
Net Net