Thumb Technique Share definition Flag After going Number 2, you take toilet paper and put it on the end of your thumb, and shove it up your pooper to wipe. Mark uses the Thumb Technique when things get ugly. Thumb Technique by ThatOneGuy987 October 23, 2012 0 0 Get merch Get the Thumb Technique mug. Buy Now — $32.95 See more merch