A dedicated server is a computer that only runs one type of server software, and is usually constructed according to the user's specifications. Dedicated servers are typically used for web sites that have high traffic, and need many resources and much processing power.
To organize, clean, and perfect any area, item or copy job in an office. Jessication occurs when a person comes back to their work area/cubicle to find all stacks of paper perfectly aligned, pencils sharpened, and Post-It notes realigned.
Hey! This room was messy yesterday. Who the F*** Jessicated my office?
When someone (or something) is devoted to a task to a point where it becomes obsessive or completely unreasonable. If someone is "dedicated", they will stop at absolutely nothing to achieve their goal, no matter what the outcome and even at the expense of others. It could also mean when someone is trying far too hard at something.