Plugging is when you take the pill, prep it as you would to bang it. Take an oral syringe or any syringe with out a needle, put crushed up bupe in a spoon, add some water (depending on how much bupe it is I usually use 60 units per 2mg), don't need to filter or anything as you would with IV, so just draw up the liquefied bupe solution, take the oral syringe and add some sort of lube to it, stick it up your ass, and shoot the liquid in there. Its best to do this while laying on your side and insert the needleless syringe/oral syringe about 3-4 inches then push the plunger and shoot the solution at a slight angle so its pointing towards the wall inside your anus. Pull it out and keep your ass from letting any of the solution come out lay in that position on your side for about 10-15 mins just to make sure you don't lose any when you get up, as it should be absorbed by then. I would recommend taking a dump before hand or letting any gas out also, as you don't want to shit or shart out the bupe lol. Its easier than it sounds, a bit time consuming, but no more than it would be to let it sit under your tounge for 15+ mins, well maybe a little more but still the pay off is usually VERY nice. The bupe lasts longer, feels much stronger (to me at least), and you don't need to use the same amount as you would sublingually but I would just to be safe the first time and make sure it works correctly. The first time I did this it was a little bit awkward I must say but it was worth it, I actually got a nice warm, full on opioid like buzz and it stayed working that way everytime, until I eventually started slamming it and then never went back. Wish I had never slammed bupe as I cannot make myself stop now, and I felt almost just as good plugging. Hope this helps! and don't let anyone walk in on you doing this as that sure would be awkward as fuck LOL.