Description:
Non-combat skill describe in game as: "Skill in the act of removing meat and useful body organs from a corpse. You need to be carrying a butcher knife in order to butcher a corpse. Corpses of sentient creatures, such as goblins and humans, can't be butchered." Butchering animals that normally drop their own meat, like pigs and deer, yields more of that meat. Butchering animals that aren't normally used for meat, such as brain bugs, yields cheap meat.
Level up rewards:
level 20: +1 to cooking
level 30: +1 to skinning
level 40: +1 to cooking
level 50: +1 to skinning