In Dungeons and Dragons
is one of the six traits used to describe a character.
Specifically, wisdom is a measure of their willpower, common sense, perception and intuition.
Like strength, intelligence, charisma, dexterity and constitution, wisdom is determined by rolling a six-headed die four times and summing the three best rolls. Character classes that require minimum wisdom scores include clerics, paladins, druids and monks.
It can be a challenge Dungeon Mastering a game with a complete moron whose character is supposed to exhibit high wisdom.
You look down the corridor, and you see in the mist the vague shape of a what appears to be a medusa walking towards you.
Cool! Is she cute?
Erm...you..ah...somehow get the feeling you should't look at her...