(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!"
A man with an unholy attribute that allows him to remove all urine from his bladder in under five seconds, with the escaping liquid making the sound of a firehose.
I was just pissing, and this man whipped out his firehosecock and was done before my stream turned into a drizzle.
Peeing over the top of one's waistband rather than through the zipper, using the penis like a hose. Usually done at a time of rush leading to a high pressure relief, thus the fire hose.
Nick: Hey man, did you make it to the bathroom in time?
John: Yeah dude but I was wearing these stupid button up jeans so I had to firehose it so I didnt piss myself
Refers to the involuntary "geyser" of liquid/slurry that one produces when something funny/shocking is spoken in his presence while he's eating/drinking something, said utterance causes an "automatic" or "uncontrollable-on-short-notice" lung- expulsion from a laugh or cough, which in turn causes a forceful ejection of the mouth's contents which shoots out for several feet and disgustingly messes up anything (or anyONE) in its path.
A classic example of a "firehose" remark-reaction is when Jimmy Culp does an astonished "sploooot!" when he hears his name mentioned by Robert Stack on the Tonight Show immediately after taking a deep swig of beer.
when one takes a crap so long it extendes the entire circumfrence of the bowl
After fajitas night, Willie went upstaris and laid an impossible firehose in his toilet. He had to break it up with his brothers toothbrush before he could successfully flush it.