Sadly this is now 2nd hand, but a buddy of mine told me that as a young man he was in a Hall of Residence (frat house, more or less) with a guy with a mighty cock (and I knew the guy he was talking about - he's since died). They asked him to put it on a 1-foot ruler (this was before we went metric) and it hung over the end.


Then there was the man with a penis 12 inches long, but he didn't use it as a rule.