a) To change something (ex: a Minecraft recipe) in a way that makes it more difficult or complex, often with added microcrafting.
b) To change something by adding references to the Minecraft mod GregTech.
I gregified the recipe for a door, now it requires an iron ring, an iron screw, a trapdoor, and some wood planks. It needs a screwdriver and a saw to craft.
You should try to gregify your recipes, it makes them much more "fun".
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.