When you pee in someone’s butt. A pee enema.

NOT a natural solution to constipation.
“I was constipated, so my boyfriend gave me an Italian butt flush. That was a mistake.”
by Daddy’s Bunny November 7, 2021
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Technique for immediately flushing the toilet after taking a shit, to eliminate lingering odors. Used in most county jails due to all cells sharing ventilation.
Unless you wanna get your ass beat, you better give that toilet a county flush.
by Kennyrivs January 20, 2017
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When you are in a public bathroom and to scared you will make noise so you flush and let the shit explosion commence.
In the public bathroom he did the flush and Rip to filter out the noise.
by Funnylmao October 7, 2017
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A preemptive flush occurs when one is sitting on the shitter, hears footsteps and flushes even if it isn't neccessary in order to let the person whose footsteps you heard know it's occupied, to deter them from coming into the toilet while you're doing your business.
A: I was sitting on the toilet mid-shit when I heard my sister's footsteps, I did a preemptive flush so she wouldn't come in while I was doing a blumpkin.
by Some_Random_Asshat March 31, 2018
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Refers to da immensely soul-calming "whew" dat you feel when --- having trepidatiously ("Well --- here goes nuttin'!") worked da valve-handle on da porcelain throne after taking a humongous dump --- da swirly actually "goes down" and therefore uncomplainingly "accepts" your far-larger-than-usual "contribution".
It is impossible to even begin to describe da overwhelmingly satisfied and grateful feeling dat you savor when experiencing a "great flush of relief"; it's somewhat similar to da "all's well in da world" emotion dat washes over you each time when da card-scanner at a store's checkout-counter displays dat wonderful and much-wished-for word "approved" after you've swiped your debit/Food-Stamps card, since it means dat you can actually get da heck outta there with your cartload of purchases, instead of having to suffer undeserved delays and/or humiliation by having your perfectly-good card invalidly declined due to either a computer glitch or a speck of dust/oil on your card's magnetic stripe!
by QuacksO December 30, 2019
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Urinate over a person's face while they give you oral sex.
The wife insisted we try a rainbow flush. It didn't end well.
by Johnson Gud May 8, 2018
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When you take a poop that is so big that there is a 100% chance of it clogging the toilet. One performs a manual dump by taking the log out of the toilet (preferably with rubber gloves), putting it into a plastic bag and then taking a walk of shame to the outside garbage.

This is generally due to constipation. Very common in kratom users.
*taking a shit*

*glances in bowl*

Me: “I’ll get the gloves, this is a manual flush. If you stepped on this turd you would probably break your ankle.”
by danasp_42 May 11, 2020
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