SLIPPERY

Slippery is a flag on certain keys. If a player is carrying a key with
the flag SLIPPERY, that player will drop it if NPKed. The key will end
up on the ground in the room.

A player carrying a slippery key can be attacked outside of NPK, exactly
as if he or she had BLOOD. The flag (PKABLE) will show in yellow if a
player is holding a slippery key.

If you have a slippery key, the PKABLE flag will appear in red in your
SCORE display.

See also:  RULES2 KEYS BLOOD NPK FINDSLIPPERY SCORE