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The sound that your gut makes when suppressing a fart . Can also be used as a verb, to fluch.
I flurched in an exam today and it was so embarrassing.

Did you just fart?
No, it was only a flurch.
by Balderdashtic September 30, 2017
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3
Flurching is the process of using your penis to flush the cum out of a womans vagina after ejaculating.
".. didn't want her to get pregnant so i flurched the cum out.."
by Fandango Mango April 21, 2008
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4
A DNA splice between Flanders and Lurch - can be volatile at times.
Flurch picked up the phone - "You rang-diddily?"
by Tom Parkinson September 19, 2003
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5
an all encompassing word to describe anything that you want with that certain sordid hint
Thomas was very excited that he would be flurching in Scotland for the weekend
by Thommy March 03, 2004
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