The sexual act of unleashing your explosive diarrhea upon someone's face.
Fionna recieved a warm septic facial from Shrek.
by Squealer February 3, 2014
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A awesome little mascot of a amazing YouTuber and a adorable plushy.
Septic sam is a cute little plushy and so soft and he is there when you need his.
by the JSE fan February 11, 2016
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1-A large tank used within waste disposal and sewerage cleansing.
2-In cockney rhyming slang, a yank.
Those stupid septic tanks have just re-elected George Dubya Bush! Bang goes peace! More terrorism activities will happen now, this enacted by the yanks on Iran or Syria!
by JT December 4, 2004
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Do you want to go and watch the septic eye with me?
by MrFrank42 November 1, 2016
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having an eye infection (because of a soccerball, if you're cool)

usally a green eye with a blue iris, and mostly found on 10-20 year olds, but is mostly used as a joke to make fun of the fans of jacksepticeye..
1: "AHH!! why did you just hit me?? ;-;"
2: "because... I AM THE SEPTIC EYE!!"
1: "man your a total jerk."
2: "MWAHAHAHA" -runs away laughing-
by Lenney McMemer March 27, 2018
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Interchangeable with Yank or Yankee, a euphemistic stereotype for Americans who spill forth verbal filth like a sewage plant.
Mate, I took that septic tank from the other day out for a surf. I was hoping the sharks would rip him to pieces but it looked as though they swam away in terror. It seems not even a Great White Pointer can swallow his bullshit.
by name different November 20, 2007
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The descriptive word to define a truely repugnant, filthy, fuked out, piece of shit person.
Did you hear that *Jane's* boyfriend cheated on her with his dog!?
What an absolute Septic Cunt!
by CrandyBizkit April 21, 2016
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