Mercy Flush

The extra flush that comes between wiping and dumping, used when the shit is unusually large to prevent a plug of soggy TP and feces forming in the pipes.
"Shit guys, I took the biggest crap yesterday, I had to mercy flush so the toilet wouldn't plug!"
by Lo Ellen Knight 275 March 26, 2009
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Sex flush

1. When your body reddens during an orgasm and shortly after it. You'll see red spots & striped all over your stomach and chest area.

2. Less popularly used to a woman when she gushes out massive amount of squirt during her climax. Just like how a toilet flushes water.
I was fucked so good where I flushed heaps amount of squirt from my pussy!

My body has been sex flushed! Look at the red stripes all over me.
by boxes above October 25, 2011
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Riddle Flush

When engineering students at Embry-Riddle don't actually learn the material; they just retain it long enough to pass the exams and get the grade, then proceed to purge it from their brain. Thus they go into the field with a degree, but actually know nothing.
"Bro, help me with this whack-ass integration." "What, is that Calc 2? I used the Riddle Flush and forgot that shit after freshman year, homie."
by Y'allneedtolearntobuildSHIT February 11, 2019
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courtesy flush

When you're in a public restroom, going number 2, flushing the toilet while you're still using it to lessen the odor and as a neighborly gesture.
Yo dude, give me a courtesy flush........you're making this bathroom rank.
by UnKleslam August 07, 2009
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caution flush

When you've taken such a massive dump that if you don't flush before you wipe your ass, you'll probably overflow the toilet
(similar to the courtesy flush)
Oh my god, I was so embarassed when I nearly overflowed my new boyfriends' toilet.
You should have used a caution flush
by four-eyed-dunker August 09, 2011
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Santa Flush

What some people (esp. young children) call Sani Flush toilet bowl cleaner crystals.
Mom, I think you need to put some Santa Flush in the toilet; it smells funny.
by Telephony December 24, 2021
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Flush But Verify

Flush But Verify
These new water-saving toilets are great, but after taking a massive dump, it's always a good idea to flush but verify.
by Justin Thyme Turd July 04, 2018
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