In ceramics, this is the process by which a clay object is put into a kiln and heated to the point where it becomes a hard solid.

The controlled heat treatment of ceramic ware in a kiln or furnace, during the process of manufacture, to develop the desired properties.

placing the formed "slip" or clay mixture into a special oven where temperatures over 1200 degrees Centrigrade can be maintained for long periods, to change the material into the familiar porcelain.

To have ones Pile status temporarily revoked for un-Pile-like conduct such as not showing up at the Bar or knocking over one's drink. "Man, I cant believe he skipped out on karaoke to hang out with a girl...he's fired"

having lost your job