Kasmidgeon Share definition Flag A kasmidgeon is a unit of length. It's somewhere between a pigeon and a cat. Every five minutes I will raise the water level a kasmidgeon. - ISP Kasmidgeon by Internetnomad0815 March 30, 2020 0 0 Get merch Get the Kasmidgeon mug. Buy Now — $32.95 See more merch