A term popularized by an episode of Comedy Central's "Drawn Together" where Princess Clara reveals her monsterous eight tentacled genetalia due to a curse inflicted by an evil step-mother.
Also used to reference a particularly unsightly or disfigured vagina that induces uncontrolled vomiting.
Example:
Girl: Scott and I were getting hot and heavy last night but he was turned off by my octopusseios.
Noun The state of being fucked by two dicks in the asshole and two in the pussy, meanwhile four dicks reside in the oral cavity. It is also a portmaneu of creampie; internal cumshot required.
Yo this party is awesome some bitch is gettin octopied in the pool.