- Hachi is the default name for the pet little dog a Samurai starts with. It is a reference to Hachiko.
- Idefix is the default name of the pet little dog a Barbarian starts with. It is a reference to the Asterix and Obelix comics.
- Slasher is the Caveman's little dog
- Sirius is the Ranger's little dog. It's a reference to Orion
In-game, creatures are referred to by their names instead of their races. Instead of "The little dog hits the grid bug", NetHack will display "Slasher hits the grid bug". Naming creatures is a great way to tell them apart, especially when encountering multiple creatures of the same type.
Default pet names may be set in the configuration file with the compound options catname, dogname and horsename. SLASH'EM also has options for ghoulname (used for the Necromancer's pet) and wolfname (for the Ice Mage's pet).