Killing the Hermit
Killing the hermit is a bit of KoL myth and legend. It is widely believed by newbies, largely due to the rumor being widely spread by seasoned players, that the Hermit at The Hermitage can be killed. The rumors often include some hint as to great powers gained from such an act, and requiring either fictious items (such as a meaty clover), or useless items (such as the flaming crutch or crowbarrr). Despite the constant rumors, Jick insists there is no way to kill the Hermit. A joke in reference to this is in the description of the tiny plastic hermit.
It should be noted that Killing the hermit is also used as naughty slang by many players, and if you ask about it during chat, references will undoubtably be made to the Orc Chasm and how killing the hermit is a necessary step to crossing it.