Not to be confused with the mock language; this usage of spanglish refers to a type of movie in which the plot is extremely complex or seems to have no plot at all. It dates back to the original movie, 'Spanglish', which many people had to watch seven times to understand what it was about.
What the hell? That's the third time I have watched this movie and I still don't get it! It's so freakin' spanglish!