SOURCE
(Secondary)The main journal was posted in some urology thing and i'm too lazy to see if it's behind a paywall or not. 15,521 men were measured in size. Break out the rulers and string, time to drop trousers and see where you fall.

For those who live in strange parts of the world and use imperial systems, and don't understand the graph:
ERECT:- Average snake length is 13.24 centimetres or 5.21 inches.
- Average snake circumference was 11.66 centimetres or 4.59 inches.
FLACCID:- Average snake length is 9.16 centimetres or 3.6 inches.
- Average snake circumference is 9.31 centimetres or 3.66 inches.
ASSORTED FACT:- 95% of Men (tumblr not included) fall between 10.16 and 16.51 centimetres or 4 to 6.5 inches.
I'm just glad they didn't put me on that list. It would've skewed the results so bad that everyone would've had a massive wang.
Though, this still doesn't change the fact that Stacy from accounting still won't go out with you because she thinks it's still small, but honestly, she was a bit of a skank and lives in a really "dark" part of town if you know what I mean. I bet she's just a bit spoiled when it comes to her selection.