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A very short-tempered Dwarf, but not for the usual straightforward reason - that using a term like "short-tempered dwarf" where a dwarf can hear it is likely to very shortly become a self-fulfilling prophecy.

No, it's all down to a curse placed on a Klatchian Seriph by an unfortunately dyslexic deity. This particular Seriph, at least until the curse was lifted, was forced to endure a situation where everything he touched turned to Glod. Glod being a terminally bad-tempered dwarf from somewhere near the Hub, made more so by being magically transported to a desert city on the Circle Sea and magically duplicated an unspecified number of times... it is said that to this day, the population of one city is unusually short in stature and bad-tempered.

To add to Glod's woes, towards the end of her life, legendary witch Black Aliss made the same sort of elementary spelling mistake when she tried to put the frighteners onto a minor royal family who she felt were not showing her enough respect. She duly cursed the princess into having to spin straw into Glod, which must have led to a vast surplus of short-tempered dwarfs being called into existence within the precincts of that palace. According to the memory of Nanny Ogg, she had to be given a large amount of money to go away and not make a scene. (Witches Abroad).

Glod Glodsson of The Band With Rocks In may be a descendant. In which case he would be wise not to petition any Gods to give him some "great big hits", as we all know Gods appreciate a good joke...