Jonah Falcon is mind-bogglingly well-endowed

"When erect, Falcon's penis generates enough heat to warm hands -- campfire style -- from a distance of six inches."

9.5 inches flaccid, 13.5 inches erect; you can find out more in this Rolling Stone article (via Popbitch). Their see it for yourself link has been bandwidth-raped, but might be back in a while.