KICK

Usage: /KICK <channel> <user> [<comment>]

Forcibly removes a user from the named channel.  the user sending the
/KICK command must be a channel operator of the named channel.  If the
optional <comment> is given, it will be shown as the reason for the
kick.

EXAMPLES:

/KICK #amiga Freddie Take it outside!
     forces 'Freddie' from channel #amiga with the reason 'take it
     outside'.