As can be gathered from the expression, it indicates a state of intense anger and annoyance, so much so that the person making the threat is ready, willing and able to inflict physical pain and degradation upon the person who has annoyed them. While it may not literally result in the removal of the offenders head and defecating into the stump, it will usually result in physical violence and a humbling of the person who caused the offence.
The expression that is believed to have originated with the British Royal Navy. It gradually became used within all branches of the armed forces and later spread to the civilian organisations associated with them before obtaining wider usage.
by AKACroatalin March 19, 2015
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An cautionary expression used in the USMC."Rip off your head and shit down your windpipe" gently warns the listener " Please pay attention, I'm not joking here. Thank you for you consideration."
1."Dammit, Dave I'm gonna rip off your head and shit down your windpipe if your try to go out with my sister!

2. "Your going to force me to rip off your head and shit down your windpipe if you insist on breaking in line."

3. "QUIT EYEBALLING ME BOY. I'm gonna rip off your head and shit down your windpipe if you don't get some polish on those boots."
by Global Feetus March 28, 2007
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In military parlance it means anything crappy coming from the top of the chain of command will hit everyone down to the bottom. This includes dumbass decision making, disciplinary actions, or simply a superior taking his frustrations out on subordinates.
Privates, I'm knee deep in your ass right now because the 1st Sgt was knee-deep in my ass this morning, and shit rolls down hill!
by enkephalin07 June 29, 2016
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1. When the unexpected bad happens.

2. The small probability of something going in the wrong way.

'N.B: the verb "goes" can be in any form up to the time tense when it's used. e.g: went, gone, go, (be) going, (has) been going, (will, must,..).etc'
- "Hello Mr. officer, what's your duty here?"
"Everything seems fine so far, I'm here just in case shit goes down"
- Cops are never around when shit goes down!
- "Take this gun buddy, just in case shit went down"
- "You never know son, because when shit goes down, it'll be too late"
by Mr porter tha elicist January 15, 2010
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when you have to deal with a problem that someone above you (your boss, parents, teachers, etc) caused.

don't forget....you can throw shit up hill cause it will roll right back down, but heavier.
I gotta do your job cause you fucked up?

Man, shit keeps rolling down hill at this crappy job.
by metamorphosis May 15, 2004
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"You know that one quote you always hear in hardcore songs? 'rip off your head and shit down your neck', it's from Full Metal Jacket, a movie by Stanley Kubrick"
by Nekir January 7, 2012
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