One who posts in a very popular thread on a message board, and then kills it. It will stay 'dead' from 20 minutes to a week, then the thread is fucked, and has no chance of become a great thread again. Just like a pron star that had testy cancer.
new post made by 'FolksyChipmunk' at: 2:34 AM June 24, 2001
currant date and time: 7:58 PM April 23, 2006
therefor he is a 'thread killer'