Now I though the film TED is just about a guy who as a child, wishes that his teddy could talk, it comes true, and how the live life when the guy's grown up...

I was wrong - looks like this film is going to be a laugh from this trailer (warning - Adult themed content for over 18's only).
http://www.youtube.com/watch?v=VxKfC77XAp8

LOL i've seen this! looks so funny! XD