If Favorites are the movies we watch over and over again and Make It End are the movies we massively despise, Too Long, Don't Watch are those special movies that are either so stupid and dull or so agonizingly rage inducing that we simply can't watch them casually like with a movie such as Gooby. Movies that full under the category of TL,DW tend to be dull, boring schlock fests. Examples of this are Xanadu, Two Bits and Pepper, and Spirit: Stallion Of The Cimarron.
So to these movies, we just kind of sit back and sigh a collective "meh". Welcome. Yes, welcome my friends, to Too Long Don't Watch, where boring shit just kind of sits there and does not much at all.