This is a discussion on Post dead within the online poker forums, in the Learning Poker section; What is "post dead" again?
I've searched through the google but still don't get what it is, exactly.
"Post dead" means posting a dead blind, which is a blind, that does not belong to the player posting it but is straight out added to the pot. Just like an ante. Its an option, players have in Stars cash games, if they have been sitting out and want to return to the action without waiting for the big blind to come around to them. If they missed both the big blind and the small blind, they can rejoin the action right away by posting a live big blind and a "dead" small blind as well. Needless to say this is a losing play. So if you play for profit, you should always wait for the blinds to come around to you