In group presentations, it's the person who assembles the
Power Point.
Usually
done as an excuse to do less, or no actual
work.
Doug: Ken, you do physical and chemical properties, and Rachel will do uses.
Ken: Okay, but what'll you do?
Doug: Ah, I'll do the
Power Point, just email me all your
work, right?
Ken (To Rachel): Dammit, Doug's just a lazy ass
Power Pointer.