The condition when cold weather causes a frozen face and diminished mental capacity which impairs your ability to speak. When you try, everything sounds stupid.
When Josh caught up to his friends at the ski lift, he made some freetarded comment about how bitchin the slopes were today.
When someone loses all common sense in regards to something, because they have been in a constraining situation keeping them from doing it for so long. Usually refers to when someone has been in a relationship for so long they forget how to get with members of the opposite sex.
John: Ever since Joe and his ex broke up, he's hasn't been able to get any poon.
Josh: What can you expect? He was with her for so long that he's become freetarded.