A "spoiler" is a report of a specific piece of information about a contestant or event from either inside source or viewing an episode prior to the regular East coast airtime.
To put it in as simplistic terms as possible with this type of show, if the network did not put it out there to evaluate and/or determine then they obviously did not want you to know or figure it out.. Boot lists, contestant myspace/facebook etc are obvious with respect to potential spoiler information.
If there is any question in someone's mind about what is a spoiler, asking tends to work rather well.
There will be another thread for speculation and analysis of clues, videos, stills and so forth.
Those of you who already posted information of a spoiler nature, feel free to copy that information into this thread.
Because I never remember names initially...