- TEOTWAWKI = The End Of The World As We Know It
This typically refers to a break down in civil order so complete that the government essentially fails to function
- TSHTF = The Shit Hits The Fan
Really these two means almost any event that requires you to use survival skills (such as a major natural disaster). TSHTF is much more likely to occur for many people than a full TEOTWAWKI. Keep in mind also that a number of other things can be included here. WTSHTF is "when the shit hits the fan" ... or ITSHTF is "if the shit hits the fan." Hope this makes sense.
- BO = Bug Out (you have to get out of town ... quick)
Really kind of self explanatory. If there's a disaster or something and you need to leave your home.
- GOOD = Get Out Of Dodge (same as BO above)
- BOB = Bug Out Bag
This is a ready to go bag of stuff that can allow you to survive a bug out for an extended period of time (a few days to months).
- GHB = Get Home Bag
This has a wide enough variety of uses that pinning an exact definition is actually harder than the words seem to mean. A GHB can be something carried in your car that helps you make it home should some disaster happen. It can also be a "subset" of your BOB designed to make sure you make it back home after a BO.
- BOL = Bug Out Location
Your planned location(s) (hopefully you have at least 2) for a bug out.
- SF = Survival Firearm
Every bug out bag (and "go" bag as well) should have (in my opinion) a pistol and a rifle. These are your SFs
- SG = Survival Gun
Same as SF above
- SW = Survival Weapon
A bit of a broader definition as an SW can be a firearm or almost anything else. I personally include in my arsenal of SWs my firearms and my hefty walking stick. I personally DO NOT include my knives as an SW for the simple reason that it looks like a weapon. If I want something that looks like a weapon I'll use my SF. Knives actually kind of suck for self defense unless you've got nothing else.
- Prepper = Someone preparing for a disaster of almost any kind
- Prepping = The act of preparing for a disaster of almost any kind
On that note, let me point something out. This whole thing (survivalism or prepping) involves the preparation for a natural disaster such as a hurricane, earthquake, major tornado, or whatever as much as it involves preparing for a break down in civil order.
I will be adding to this list, the current iteration is little more than the things I pulled off the top of my head.