Top Definition
(verb) An extremely uncomfortable bowel movement consisting mostly of liquid and being expelled from the butt in such velocity and volume that it resembles a fireman's hose.
"Hey bro I want to apologize in advance for the condition of your bathroom. I drank too much last night and had a violent case of firehose ass today!"
by parasite30 July 15, 2009
5 Words related to Firehose Ass

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