Panties worn by those interested in scatology, or scat play, for the exclusive purpose of defecating in; a throwaway pair that can be disposed of after using for its intended fetishistic purpose, thus avoiding burdensome cleaning.
(A portmanteau of "shit" and "panties".)
Knowing she was going to scat play later that night, Cheryl put on her shanties in the morning, and had 3 cups of coffee, 2 and-a-half packs of cigarettes, a big lunch, and treated herself to Fiber One bars liberally throughout the day.
Since my hemorrhoid surgery, I have been wearing shanties every day, rather than ruin my silk Victoria's Secret.
A phenomenon in film/television series, most notably streaming series, where the main premise is drawn out to such a point that it takes an entire season or more to get the parts of the series the audience is actually interested in seeing.
For example, if a series is titled "Surf Dracula," a majority of viewers would tune in expecting to see Dracula surfing by the first or second episode. However, the entire first season would instead be tedious padding and backstory before finally ending with Dracula surfing in the last five minutes of the season finale.
I watched "Smallville" on Netflix the other day. Dude, it was ten seasons of filler before he finally flew! Major Surf Dracula Syndrome!