Ok, so we all know that a big foot size does not equal big penis size, but I just wanted to say something on the matter.
This myth is not entirely false, as foot size is usually a factor of how tall you are, and the height of a person usually is the main factor of penis size. Example, if you were 3 feet tall, chances are your penis would be in relative proportion to the rest of your body, so, the penis would likely not be very big compared to other peoples. Or, if you were tall, bigger penis size, generally. This is not exact, because penis size can vary a lot, but this is generally true. This is actually why black people are supposed to have larger penises than white people, because on average, black people are taller.
Just a little info.