“What’s a Bottle Episode?”. Top notch question. It refers to an episode of any given television series that is limited in budget and so doesn’t feature masses of locations, special effects, cast-members, and so on so forth.
The origins of its name come from way back in the 1960s…
When I’m old, grey, and even more bitter, I’ll gather my grandchildren around (pulling them away from The Walking Dead, which is still somehow scraping plot-points from the bottom of its shallow barrel) and make them watch ‘Balls Out’.
Yes, it’s a thing. And it’s not the raunchy sort of movie that may come to mind. Although, granted, it’s totally not suitable for grandchildren — that’ a bad move on future me’s part but you’ve got to understand that 2065 is a different time.