Traditional narrative terms -- such as plot, theme, and story -- are often used to describe role-playing game (RPG) play. However, RPGs are also fundamentally different from narrative forms like books and film. The result is that trying to discuss story in RPGs leads to a quagmire of jumbled assumptions.
Word Origin & History. mob 1680s, disorderly part of the population, rabble, slang shortening of mobile, mobility common people, populace, rabble (1670s), from L. mobile vulgus fickle common people (c.1600 in English), from mobile, neut. of mobilis fickle, movable, mobile, from movere to move (see move).
Mob grinders are sometimes specific to a certain size of mob. Tall mobs usually refer to tall hostile mobs, namely skeletons, zombies, and creepers, but can also refer to cows, sheep and zombie pigmen. Small/short mobs are only 1 block tall and are spiders, pigs, wolves, chickens and ocelots.