“See, the problem is that God gives men a brain and a penis, and only enough blood to run one at a time.” Robin Williams

There's this urban legend that says there's a man with a penis so big that he faints whenever he gets an erection. The rest of his body, according to the urban legend, suddenly experiences a shortage of blood. This is probably a tall tale and I'm sure the guys at Myth Busters would want to bust this myth.

Anyway, men are almost always interested how they compare with others when it comes to “giftedness”. Others will say “it's not how big it is but how you use it” but deep inside, they know that size matters.  

“For patients with psychological concern about the size of the penis - particularly if it is normal size - there is little point in offering them surgery because it makes no difference.” Dr. Nim Christopher, The Perfect Penis

Now I won't be delving into Freudian psychology. I mean if you really want to know who owns the largest penis in the world, I won't keep you waiting. Ready?

And the biggest penis in the world belongs to . . .

. . . the blue whale. According to Wikipedia, the penis of a blue whale measures 2.4 meters (8 feet). Now that might seem really big but remember that the blue is the biggest freakin' animal on earth, (maybe in the universe, who knows). A whale could grow up to 30.5 meters (100 ft). If we talk about proportion, the giant whale will be put to shame by the lowly duck.  

The Argentine Blue-bill Duck has a record penis length of 42.5 cm (17 inches). His is bigger than yours dude. And his body is only 20 cm (8 inches, the size you wish yours is).

I know you're probably thinking that I cheated. I bet you thought I was talking about human penises. Well, I won't disappoint you.

In 2006, Channel 4 in UK finally put an end to the relentless mystery when they aired the documentary titled, guess what, “The World's Biggest Penis”. Jonah Cardeli Falcon from New York owns the biggest penis in the world. It measures 9.5 inches (24.13 cm) flaccid and 13.5 inches (34.29 cm) erect.

Don't worry, the average human penis is only 6 inches (15 cm) in length. Yours probably isn't as teeny weeny as you thought, dude.

And if makes you feel better, Jonah IS NOT always getting laid. In fact he is having a hard time getting laid. He's bisexual, lives with his mom and hadn't had a girlfriend in 12 years.  

While results vary across studies, the consensus is that the average erect human penis is approximately 12.9–15 cm (5.1–5.9 in) in length with a 95% confidence interval of (10.7 cm, 19.1cm) or (4.23 in, 7.53 in). The typical girth or circumference is approximately 12.3 cm (4.84 in) when fully erect. The average penis size is slightly larger than the median size (i.e. most penises are below average in size).

http://en.wikipedia.org/wiki/Penis#Size