From the NannyMUD documentation

LAST CHANGE

2004-02-15

FUNCTION

NAME
        drop_money - the player drops some money


SYNTAX
        int drop_money(object who, int howmuch, int silent) 

LOCATION
        /obj/support

DESCRIPTION
        This function is used when the player drops some money. A
        money object is created. The messages can be turned off, by
        giving a non-zero argument 'silent'.