Top Definition
To defecate intensely.
Most commonly used to describe a loose, watery stool that sprays out of the anus. In severe cases of blasting ass, the entire toilet bowl can be covered in fecal spray.
After drinking my morning coffee, I have to blast ass.
by AceFool October 11, 2015
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When youre taking a dump and when you push you release a spray of watery hershy squirts
I was taking a dump,and had some serious blast ass
by Shooshmaster January 18, 2015
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