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The turds/toilet paper that always manage to scoot back into the toilet bowl at the end of a flush.
I had to flush the toilet 2 times at work today because of the damn backflush.
by JayRoy September 04, 2007
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Mostly used in the fag community, it is where two men touch their penises together so the pee holes line up and the fore skin is pulled together ( best with one uncircumcised penis and one circumcised ) Then they piss inside of each other's pee hole thus back flushing the penis.
Hey bro, you wanna back flush each other tonight after dinner.
by Back Flushing October 03, 2018
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