one-man blumpkin Share definition Flag to auto-fellate oneself whilst dropping a deuce "Man, Max has been in the bathroom for over 45 minutes, he must be doing the one-man blumpkin." one-man blumpkin by poops mcallister July 3, 2006 0 0 Get merch Get the one-man blumpkin mug. Buy Now — $32.95 See more merch
