A portion of scripted material, usually in a movie or television show, that absolutely makes no sense at all and should have never been concieved by the writer(s) to begin with. A bump in the plot so bad that it kills any suspension of disbelief the viewer had.
Did you ever see Jeepers Creepers? Why would a young girl on a long drive with her boyfriend ever want to stop at a creepy farm to investigate someone shoving what seems to be a body into a hole in the ground? Most women let along younger girls I know won't even step on a bug.