A Brown whistle is when a girl gives head after hard dirty anal

or

when a guy is giving a rim job and a girl sharts.
'I bought her dinner and she wouldn't even give me a Brown whistle

I would have gave him a brown whistle, but I didn't have any breathmints

For male : residue on mouth after lips come into contact with sharted rim.

For female : residue in/around mouth after penis is in contact with poopy anal.
by mistyvail April 19, 2014
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Johnno's got the old wondering jaw this morning looks like hes had a fair night on the brickies whistle
by Sea Willy June 28, 2019
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When you go to fart and you inadvertly begin to shit , become startled and the shit goes back in .
Bob had great hearing, but the sound of his puckering French whistle let everyone in the office aware that he narrowly avoided crapping his favorite pair of pants..
by Ben waah February 22, 2023
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When you suck a dick and it somehow makes the sound of a whistle.
Dude last night it got so awkward when she made that wiener whistle.
by SoulOfDragon May 1, 2016
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a wet so intense that it is wetter than normal
my girl was so turned on that her nether regions were wetter than a whiskey drinkers whistle
by Samran53 October 21, 2020
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When a woman's vagina is so loose that it makes a whistling sound when any strong wind is blown through her legs. (As is the case when running. )
Oh man! You can hear that whistle snatched coming from a mile away.
by AlottleBit July 6, 2021
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