The biggest fully erected cawk in the world is 13 inches. It's in the guinness book of records...i'm assuming those claims to 20 inch cawks are pretty fake...
anyway, there was a thread about this not too long ago where someobody posted a link to a website that showed how those dudes get their 3ft long dicks.
well there you go, the monsters of cock dude's are all fake.....I'm pretty sure this has been talked about here before. Those things hang down to their ankle's.