An individual who engages in sexual acts with a Cephalopod i.e. a Squid, Octopus, Baby Kraken.
This act is mostly displayed in hentai where it is kind of hot and a little bit funny. In real life however, it's just gross because most Cephalopods are slimy and moist.
You watch so much Tentacle Hentai that you may as well be a Cephalopodophile, seriously, it's becoming a problem