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1.
Inspiration inspired from AC Slater from saved by the bell sitting backwards on his chair at the restaurant and in class. A Slater Dump is when you turn around and have the bowl between your legs. The beauty is being able to cross your arms and rest on the back of the toilet, or even place an espresso on it.
I took the nicest Slater Dump today at work, got about 20 minutes shut eye too.
by Jake November 22, 2004
 
2.
Taking a dump while sitting backwards on the toilet.

Referenced from the character A.C Slater (Mario Lopez) from the hit show "Saved By The Bell" who always sat backwards in his chair.
I just took a slater dump in dash's apartment
by iamsnowbear December 30, 2010