A person who works in a shop often ask to work on shit nobody else wants to. Often call a slab rat. low man on a totempole that makes sue everyone elses shit is right but gets no credit what so ever for it.

Adj. Something that is expected to have a long lifespan by virtue of having existed for a long time, based on the lindy effect, named for the New York restaurant Lindy's, coined by Albert Goldman and popularized by Nassim Taleb.