Shimmy Share definition Flag Short for "Shampoo Immunity". It is when shampoo can be used for lube in anal stimulation of the prostate without it burning. Damn man, that guy has shimmy. I still have to use KY or conditioner. Shimmy by Raven July 19, 2004 0 0 Get merch Get the Shimmy mug. Buy Now — $32.95 See more merch