Usage: `/DEOP [channel] nick[,nick...]'
Will remove the Channel Operator status of one or several users. Note that the user issueing the command needs to be Channel Operator himself.
Related: OP
Examples:
`/DEOP Billy'
Removes Channel Operator status from a user called BILLY.
`/DEOP #Amiga Billy,John'
Removes Channel Operator status from users BILLY and JOHN on the
channel #AMIGA.