FUD is an acronym for ‘Fear, Uncertainty & Doubt’ used in marketing to create a need. By creating a need based on FUD, you can then sell a ‘solution’ to mitigate the FUD which you have created.
In this manner, you have created a market based on fear which heretofore did not exist, and you are then selling a solution which was heretofore not required!
Microsoft picked up the art of FUD from IBM, and throughout the '80s used FUD as a primary marketing tool, much as IBM had in the previous decade. (Source: Wikipedia)
Another way of spelling the word food, and is often used by experienced foodies as a way to assert their dominance over peasantry people who don't understand the art and influence of eating.
I like fud.
Imagine not like fud.
Fud.