From the NannyMUD documentation

LAST CHANGE

2000-12-08

COMMAND

NAME
        Curse - Remove a command from a mortal for a while.


LOCATION
	Wizmod, module 'default'.

SYNTAX
        Curse [-f]  

DESCRIPTION
        This command clones a curse object to the player and sets it up to
	catch that command from the player. The curse can handle multiple
	cursed commands, thus just a single curse object is needed. The curse
	is, naturally, auto-loading. After a while (15 minutes), the curse
	goes away on its own.

	The 'f' flag can be used by the admin to add a curse that lasts
	1 hour and cannot be destructed by non-admin.


SEE ALSO
        Uncurse in std/module/default/Uncurse