prickly pineapple Share definition Flag The act of inserting an inverted pineapple up ones anus to achieve sexual stimulation. Thank god I didn't fart while I was getting that prickly pineapple prickly pineapple by macwehle January 21, 2011 0 0 Get merch Get the prickly pineapple mug. Buy Now — $32.95 See more merch