MODE <+|-> Usermodes: USERMODE DESCRIPTION ----------------------------------------------------------------- +o - Designates this client is an IRC Operator. Use the /oper command to attain this. +i - Designates this client 'invisible'. +g - "caller id" mode only allow accept clients to message you +x - "Hidden Host/Vhost" means this client is using a vhost, or hidden host, and not the real host.