flush the ducts

ejaculation by means of masturbation
preventative measure to reduce the risk of prostate cancer

'Flush the ducts'
The new study, published in this week’s Journal of the American Medical Association, was based on an ongoing survey covering a variety of health issues of thousands of men who were 40 to 75 when the study began in 1986. In 1992 they were asked to report the average number of ejaculations they had per month during ages 20 to 29, 40 to 49 and during the previous year. In later surveys they were asked to report if they had been diagnosed with prostate cancer.
Why are you taking so long in the bathroom, Johnny?

Im just flushing the ducts, mom!
by a dawg April 07, 2004
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gentleman's flush

the proper act of flushing one's toilet mid-way whilst taking a dump

usually a precautionary action in order to avoid clogging the toilet

especially important when plumbing is mediocre, and strictly unnecessary on aircraft lavatories

it has nothing to do with poker
after Thanksgiving most people usually forget the Gentleman's Flush and end up clogging their toilets.
by jonathan_cuervo November 29, 2009
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Courtesy Flush

When someone has dropped a nasty shit in a public bathroom that subsequently begins to stink in the next stall. The dropper of the nasty shit must flush his/her toilette to rid the bathroom of the shit smell that is being realeased from the fresh shit pile.
Hey u next to me, you're shit smell is making me light headed, can you give a nigga a courtesy flush.
by CpnIt October 05, 2009
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double flush

when you poop in the toilet and you flush it and look back and there is still some poop there or skid marks, you give it another flush and its all gone
Man, i took such a huge poop the other day i had to double flush that sucker.
by Cortizz April 25, 2008
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Royal Flush

The physical act of pushing a person's head into the toilet and pulling the chain (or pressing the button, for all you modern cistern types).

Suitable initiation/punishment for freshmen, especially new attendees of upper crust boarding schools (making the "Royal" especially apropos).
So, whatever happened to that young pimply Venables boy we saw around the traps?

I gave him the Royal flush during recess.

Very good, Hawthorne.
by vanderspoor August 26, 2011
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Pre-flush

To flush the water-closet prior to defication thereby lubricating the porcelain, thus mitigating the effects of a crash landing.
'Dont forget to pre-flush darling, you do know how you love to crash-land'.
by McGinty September 02, 2006
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half flush

The subtle act of pushing halfway down on the toilet's flush knob, usually used to discolor the small amount of pee that doesn't qualify for a full flush, but still looks a little unsightly.

Usually used by eco-conscious individuals, or at night time when others are sleeping.
After draining the lizard at midnight, I opted for a half-flush in order not to wake the damn kids.

Guy : "You ever have that massive urge to pee, but then only a trickle comes out? That's when I half flush!"

Another Guy: "You should get that looked at man. Could be time for a prostate exam."

Guy : "Screw you dbag. I ain't gettin no hands up this trench."
by shizzinator August 25, 2010
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