<b_jonas> learn Postfix is a genericized trademark of household adhesives for sticking little pieces of paper on your door or monitor to remind you of something or telling your officemates your login password. Called Tack-it in the U.S.

A skeleton is an unintelligent undead, similar to the zombie but harder to create, because it's lacking most of the body. The best skeletons are made by groups of people, so-called skeleton crews.