Top Definition
Diarrhea with a high acid content that causes severe burning sensations on and in the rectal sphincter. Can result in bleeding, chaffing, and the inability to walk properly.

Diarrhacid can also result in extraordinary pain upon sitting after business has been done.
Sounds made while trying to sit in a chair after a brutal session of diarrhacid

by David Hawaii April 25, 2007
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