(noun) The degree to which something said publicly by person A about person B can be directly traced back to something told in confidence to person C by person B.
Tom told Cindy secretly that he was gay. When Mel outed Tom as gay, it was obvious by following the Trailmom Trail that Cindy had betrayed Tom's confidence.
Used to describe a female who is kinda attractive in a trashy way. Used as a disclaimer to prevent your friends from thinking you have no taste (if said friends think shes [fugly or a skank)
"She not really hot, but she's trailer cute. I'd maybe hit that." The type of girl who'd be a lotta fun for a long weekend, but you definitely wouldn't wanna marry her. You would certainly deny having known her if you ever ran for office.
When a movie is so bad and devoid of any substantial plot that watching the movie can be done by watching the trailer itself.
Snow White and the Huntsman is an example. Eragon is another (no offense to the book).
Also one of the most disappointing things in the world.