A type of muffler that is used for shitty cars (mostly rice burners such as toyota and nissan) that makes a very low-pitched hum. Shit whisltes are used to make the cars seem to have a sizable amount of power and/or speed. When rubber meets the road however, the car proves to be a heap of shit.
Dumbass: Dude, that supra sounds awesome! I bet that thing could tear it up on the quarter mile!
Smart person: No, that's just a shit whistle. The car will actually run about a 15 second quarter mile.
Smart person: No, that's just a shit whistle. The car will actually run about a 15 second quarter mile.
by The REAL Moonshine December 28, 2005

I'm not quite sure of it's origin but the first time I heard it was on active duty with the US Air Force some time in the late 1970s.
A shit whistle is the item used by people, known as shit-whistlers, who tells a complicated and evolving tale that they alone believe. In psychiatry the closest term is a confabulation.
A shit whistle is the item used by people, known as shit-whistlers, who tells a complicated and evolving tale that they alone believe. In psychiatry the closest term is a confabulation.
"Hey, you should have been at the NCO club last night! John was blowing the shit whistle again..it was a classic!"
by Uberklokken August 07, 2018

Fart at a high pitch
by Cuffs82 April 23, 2019

During sexual intercourse a slide whistle is inserted into the partners anus and defacated in. The whistle is then removed and played by the other partner.
by bss120 June 13, 2022

Diarrhea so bad that the loose stool exiting the anus creates a whistling noise. It should be noted that the noise can range from a low pitched hum all the way to a high pitched scream like a Piccolo Pete firework.
by Gargle McBalls. August 24, 2023

When your butthole lips the back of the toilet seat like the mouth piece of a flute and ye ol sphincter plays a shitty form of whistling Dixie as you let one rip.
So I went to the toilet ‘cause I had to take a dump. Now I sat as far back on the seat as possible cause I hate it when my dick kisses the inside of the bowl, and and I proceeded to let loose. Now unbeknown to to me the better part of what was going to come out was a fart, and I guess I was just a little too far back on the seat. What came out was an ear piercing whistle shit. I achieved a Shit Whistle. My mind is blown.
by TheMummyHand August 12, 2021

by EricJC November 10, 2021
