When you have your underpants pulled down and your ass put up to a water fountain. Commonly used in Bronks, Minnesota by Spooky Tony Tofu.
"Remember when we used to beat you up in the schoolyard and pull your underpants down."

"Yeah, well, No I don't remember that, actually"

"Yeah then we'd put you up to the water fountain and tell you it was a Bronks Bidet"
by Ravioli Trombone July 18, 2017
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When you shit so bad that the toielt water splashes your asshole.
I just shit so bad I didn't even need toilet paper cause the splash washed my ass, thank god for mexican bidets.
by Tadpol December 1, 2007
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When you've had such a terrible bout with some extremely explosive diarrhea. The kind in which no toilet paper or wet wipes could do you an ounce of help.

1. You head to the shower and turn the faucet on. Prop yourself underneath with your legs up on the wall and let the forceful water from the faucet completely douse your ass crack and nether regions for a complete cleansing.
2. You turn your back to the sink, turn the faucet on and continually splash the water on your ass crack and nether regions completely cleansing any shrapnel or remnants of the disaster.
(Hand soap can be used in either scenario for extra cleansing)
After returning home from a Wing Fest, I had such an awful case of explosive diarrhea that a roll of tissue paper was not going to suffice, my only saving grace was to partake in a reverse bidet and douche my nether regions.
by max nova July 3, 2009
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Comes from the sound of a Happy Birthday, shortened to Happy B-day. Since "b-day" is pronounced in the same way as "bidet", Happy Bidet is a humorous way of wishing someone a happy birthday.
- Isn't it your birthday today?
- Yes it is.
- Oh, Happy Bidet, mate!
by bijomaru78 June 2, 2018
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What happens when an automatic toilet flushes while you're still sitting on it.
I sat-down to take a dump on the toilet in the Chicago airport, and I had barely moved forward when suddenly it flushed and I was a victim of the bidet effect.
by SluggoBear November 26, 2008
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when you drop a turd into the toilet and the splash-back hits your ass and genital regions. Not as hygienic as a standard bidet. May have been the motivating force in the invention of the real bidet. The higher the toilet seat is above the toilet water, the better chance you are using a hillbilly bidet and not a toilet.
Aw man, that's not a toilet, that's a hillbilly bidet.
by bambrew August 20, 2011
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When one flushes the toilet while sitting on it causing the water to cleanse their ass like a bidet would do. For maximum efficiency it is recommended that one should dip their ass slightly into the bowl of the toilet, thus splashing more water between the cheeks.
When making use of the ghetto bidet one should make sure the toilet is empty. You do not want a cold wave of piss showering your anus.
by TKFT January 9, 2013
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