Self defecation is the act of being able to make fun and/or light of yourself in an effort toward 'humanizing' yourself. Actually that is the definition of 'self deprecation' however self defecation is self deprecation BUT to the 'Nth' degree. To further explain, the antonym of being self deprecative would be 'pompous' while the antonym of being self defecative would be that of a 'complete pompous ass'.
He was trying too hard to fit in by using some self defecation humour and ended up making himself not only the butt of his own jokes, but everyone else's as well. What a complete ass, he sure went overboard.
by ORD ELLIS September 5, 2007
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To unintentionally demean one's self. To unthinkingly place one's self in an unflattering light.
People who minimize their genius are self-deprecating. People who eulogize their ignorance are self-defecating.
by Chicagodmt June 11, 2009
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A defense mechanism that one uses in prevention of being raped. While the rapist tries to put in penis into someone's butthole, the victim simply shits themselves to push the penis out. The rapist cannot successfully put his penis in, while his victim is pushing shit out
Cop: "How did you prevent that man from raping you?"
Victim: "It's simple, I just used some self defeces and now his dick smells like shit"
by Kanye's penis December 16, 2017
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The act of getting some cheap laughs by pooping one's pants.
Billy's lame jokes kept falling flat, so, desperate for a laugh, he decided to change course and try some self-defecating humor.
by Lord Nexus VI November 22, 2012
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Not to be confused with self-deprecating humor, self-defecating humor is NOT funny. A joke that bombs like a dump of crap.
Example: A joke about your own foibles that stinks!

Sorry,Man, I hate to admit it, but I like PB&J with bacon even though it always gives me gas. (Your admitting that is self-defecating humor.)

Too much information, Dude!
by sizcruz January 22, 2010
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