1 definition by JD SH

A terrible case of diarrhea where feces is uncontrollably ejected from the rectum at a high velocity, generally caused by the consumption of Blatz beer; Can also be caused by consuming Old Style, Milwaukee's Best, or pretty much any fine brew hailing from Central Wisconsin. Synonymous with urinating out of your asshole, chocolate milk poops, and ninja turtle poops.
The best way to blatz is to sit AC Slater style and hold on to the back of the toilet so as not to fart right off the seat.

While Scott was blatzing all over the bathroom, Justin could no longer hold it in and decided to put on an old pair of sweatpants and hope for the best.
by JD SH December 4, 2007
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