From Discworld & Terry Pratchett Wiki
Called Young Thunderaxe by the other dwarfs, he could still be over sixty years old. This dwarf is encountered in The Truth, one of the company of dwarves to come with Gunilla Goodmountain and Boddony to Ankh-Morpork with the Movable Type Printing Device.
However, the big city has many traps for the unwary newcomer, and Thunderaxe falls for one of them - a sausage in a bun sold by Cut-Me-Own-Throat Dibbler. When told about his misfortune, William de Worde asked if Thunderaxe was ok, and was informed that he 'had called under the privy door that he was feeling much better, but would be staying where he was for the time being'. Welcome to Ankh-Morpok, City of One Thousand Surprises...