Inventor of Hnaflbaflsniflwhifltafl, the precursor to Thud, at the bequest of Hugen the then-Low King of the Dwarfs. Stronginthearm as a surname is hugely common amongst dwarfs.

As a reward for inventing the game, Hugen asked Morose what he wanted. The inventor is on record as saying: "If it please you, your majesty, I ask for nothing more than that you should place one plk [a small gold piece then in general circulation] on the first square, two on the second, four on the third and so on until the board is filled."

After being threatened with an axe by the King, Morose hastily amended his request to "as much gold as he could carry", whereupon Hugen agreed and merely had one of his arms broken. "For," he said, "all should know that while Hnaflbaflsniflwhifltafl teaches preparedness, strategy, boldness and quick thinking, it is also important to know when not be too drhg'hgin clever by half."