a moist slug that loves people's anuses, mainly males. whilst most people are aware that an anus slug can be killed by sprinkling it with salt, it is a little known fact that anus slugs can be commonly seen with silly headwear

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.