The Mop Bucket Dump is one of the most heinous of all acts of defecation. The anal sphincter opens to allow a virtual geyser of liquid feces to explode from the rectum and oring. The explosive force, sound, smell and the look of a Mop Bucket Dump achieves its notoriety from the that is looks no different than if a Janitor had emptied his or her filthy, used, dirty mop bucket water out into the toilet. Pure liquid dirt. You cannot tell the difference between the Mop Bucket Dump and a dumped mop bucket.

The Mop Bucket Dump is typically the result of poor dietary choices but may also be a result of food poisoning or other gastrointestinal conditions.
Steven thoroughly enjoyed his entrée of fresh, Norwegian prawns although he thought that they might have been a little off and rancid due to the smell and tangy after taste. About an hour later, he found his ass plastered to the toilet and arms gripping the handrails as he blew a wet, steamy, dirty, brown Mop Bucket Dump. As the sweat dripped from his brow, he realized that the prawns were in fact off.
by Eaton Holgoode January 19, 2015
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A group act of defiance perpetrated by disgruntled employees, students or other activists that results in urine, rather than cleaning agent, to be unwittingly distributed on the floor of a relatively small, enclosed space; given sufficient time, the now ripened piss causes the air to become unbreathable, the facility itself rendered temporarily toxic.
We're all in this together; EVERYONE, even you ladies, gotta step-up and piss in the mop bucket! Now's our chance to get some payback!
by YAWA August 27, 2017
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When in Prison and working in the kitchen you get a female Correctional Officer to kneel atop a mop bucket. While giving one inmate mad head shots another inmate is ram roding her from behind, after a short while they spin the mop bucket and the roles reverse
Hey Deanna, you down for this mop bucket challenge ?
by ScortinGingerAirplaneStealer October 20, 2017
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Where a man with diarrhea shits in a girl's mouth. Then, as she holds the feces in her mouth, the man dips his penis into her mouth and proceeds to make mopping motions on her body with his shit-covered penis.
Guy #1: Dude, did you hear all the commotion coming from the dorm across the hall last night?

Guy #2: Hell yeah! Andy must have been giving Savannah another dirty mop bucket.
by Crowberry June 27, 2012
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"I shagged a girl last night, her cunt smelled like a fishmonger's mop bucket"

"My wife's cunt smells like a fishmonger's mop bucket"
by The sting January 14, 2014
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