donkey stamp Share definition Flag When your dick gets so hard, it becomes as big as a donkey cock. Then you hit a bitch in the face with it. Hey Peter. Massey is going to give you a donkey stamp if you piss him off donkey stamp by petermasseylove69 November 18, 2014 0 0 Get merch Get the donkey stamp mug. Buy Now — $32.95 See more merch