charminimum Share definition Flag Charminimum – the point at which you're down to the last roll of toilet paper. In my house, that's Charmin brand. Hon, I asked you to get more PT! Got half a roll left. I hate being at charminimum! charminimum by Junk Drawer Kathy December 24, 2011 0 0 Get merch Get the charminimum mug. Buy Now — $32.95 See more merch