**It is COMPLETELY possible to plug while constipated**, and there dooms to be a bit of misinformation in this thread about how it's done. The biggest one is the idea that you're supposed to get the liquid into your rectum, instead of your anal canal, which is where you're supposed to inject it in. So, I know this is an old thread, but let me clear some things up:
When plugging, you're only supposed to use 1-2.5ml of liquid at max. If you have a super high tolerance or can't dissolve your powder in that amount of liquid, do it over multiple times, with you plugging/boofing, waiting 15 minuts, ideally preparing your next shot while waiting those 15 minutes. And yes, like I said, you're supposed to shoot it into your anal canal, not your rectum. You have a 4-5cm long anal canal right behind your sphincter, and be hung that is your rectum where all your shit is kept. The anal canal should generally be completely void of any poop or have very little in it. it is the absolute best place for absorption, since it's so slimy due to having the job of gluiding and making your poop come out quicker, so that also means that layer absorbs your mixture into your body and veins very quickly and smoothly. So if you're an addict, constantly constipated, then first of all buy a lot of laxatives and make sure you take them daily, since yes, a cleaner assholes will always be the most failsafe way to do it. But also, it's not a nice feeling being constipated all the time. Second of all, make sure you only use a 1 or 3 ml oral syringe. These are bought cheap on any pharmacy, and even cheaper on Aliexpress, Amazon, TEMU if you feel embarrassed going to the pharmacy. You can even buy a bag of like 20 for $1.5.
maximum use 2-2.5ml of liquid, and if you're boofing smth like morphine, adding some heat and some baking soda equal to 1/8th of your total morphine powder to go into the moisture should make it hit a good chunk harder. Some people inject in a tiny bit of baking soda even before boofing too. It helps with the PH levels and makes absorption better. This is true for both Oral and rectal ROA for many opiates. And for the heat, according to a National Institute of Health study, morphine dissolves best in water at 80° celsius. *And obviously remove the coating of your pills if it's ER/SR* before crushing, and, if you can, try and see if you can find and get a smooth mortar and pestle to best crush your pills intro the finest power. Just don't get the one that have these "layered rings" in the bowl. The bowl has to be super smooth.
**Now onto How to shoot*, and this is very contradictory to what many have said in this thread: don't go in any longer than 2cm 2with your syringe, measured from the tip and make sure to STAND UP WHEN YOU'RE SHOOTING IT IN. if you're fully relaxed while doing this, your sphincter will automatically completely surround the syringe and close it off, making anything dripping out impossible. DO NOT just press hard to press all of it in at once. Press very slowly, like 1ml of liquid should be pressed out over a minimum of 3 seconds, and 2ml+ should be pressed out over 5seconds plus, at least. And after you're done shooting, gently pull the syringe out, while still pressing fully in on it, so it's all pressed out. Now after this, DO NOT go lay on your side and Don't lay down. If you are constipated you'll just give the mixture a chance to reach the back/top of your anal canal and have some of it drip into your rectum where all your poop is. Just stay upright, so your sphincter can keep it in place, and your canal walls can slowly absorb all of it. It's obviously best to stand, but sitting straight up is fine too, as long as you sit with a straightened up back. Don't worry, nothing is going to drip out, unless you have some medical issue that causes you to have a weak sphincter or something. Other than that, you should be completely fine, and just either sit or stand the next 15-20 minutes, while your boofed mixture gets absorbed, by your anal canal. This makes it completely possible for constipated people to boof. + It is just outright the best way to boof and the way people should be boofing in general. Only difference is, that if you're boofing on a completely empty rectum you might get like 2-5% better effect.