When someone doesn't wipe their butthole after taking a shit and has someone else use their tongue to lick it clean afterward. This is usually done as payment for cocaine or other drugs as was seen in the 1970s by Eddie Nash, cocaine and nightclub kingpin of LA.
Eddie: Oh Jesus, I just had explosive diarrhea and it's all over my butthole.
Crackhead: Oh boy! I'll give you a Crusty Octopus for a gram of cocaine.
by Black Dynamite 442 December 31, 2018
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Complimenting someone or gassing them up to the point where you're feeding their excessive ego, like a greedy, hungry octopus. 'Octopus' is also phonetically similar to solipsism, the idea that only the self exists.
Lou: You look so amazing today Julia.
Julia: (already full of herself) Omg thanks.

Briana: Lou, you're just feeding the octopus.
by bri_bel April 24, 2017
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When a girl's body spontaneously begins menstruating in a desperate attempt not to have sex with you.
Kate's octopus defense kicked in when we were hooking up at that party. She inked all over the place, left me seeing red.
by Taberlin November 7, 2017
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psychic octopus ready to b cooked by germans as it predicted spain to win :D
who will win the match blud?
i donno ..ask paul the octopus....
by rukkestop July 9, 2010
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The entity created by the act of coitus. So named because the resulting entity has eight human appendages.
Dude, I'm totally traumatized. I went over to my parents' house for dinner and I walked in on them making the human octopus.
by JC Not Christ August 25, 2008
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The Auto Octopus is the act of one male individual ripping off his own penis and then shoving it so high up his rectum that it seemingly disappears. The individual has to then defecate in order to retrieve his penis. This practise is a method in which men are fully able to 'fuck themselves' however, it is known to be extremely painful.

The origin of the Auto Octopus comes from the rather unusual mating strategies exhibited by the marine creature: the octopus. In order to mate, octopuses must rip off their penises and then throw them at the females they are wanting to reproduce with.
Man 1: "Shit dude, last night I finally manned up and performed the Auto Octopus"
Man 2: "Far out bro, that is hard core!!"
by The Urban Beast May 25, 2015
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