abstract:A jack post is a steel post used in the construction trades for shoring walls and trenches. The term "jack post" is one of many describing the same system, other names include any assortment of "adjustable", "steel", "jack" and "shoring" with "post", "column" and "prop", depending on their precise construction - the "jack" refers to examples with a jack screw to adjust the precise length of the post.
In the film, an eye-patched Hopper overacts his head off while chain-smoking, swigging Jack Daniels, and zooming around on a jet ski in some kind of filthy, post-apocalyptic pirate outfit.