To make an ass out of yourself to get out of a horrible situation.
The quickest way to pull off a self-assification? Making an ass of yourself. Faking a massive bowel movement.

"After being asked to clean the yard, I did some self - assification by telling them I had explosive diarrhea."

"I had to work my self - assification to get out of cleaning the toilet yesterday"
by tomgreene March 4, 2010
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