From Elendor
@emit[/room] <message>
@emit[/noeval] <message>
\\<message>
This sends <message> to every person in the current room. However, no
identifier marking it as being sent by you is shown (except that players
who are set NOSPOOF do get the standard prefix identifying the source of
the sound). For example, @emit foo would show 'foo' to every object in
the room.
The /room switch makes this command equivalent to "@lemit".
The /noeval switch prevents the MUSH from evaluating the message.
@emit can be abbreviated "\\"
See also @pemit, @remit, @oemit, @lemit, NOSPOOF and SPOOFING.