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How Much Do You Know About Dicks?

The word "penis" comes from the Latin word [pēnis](http://dictionary.reference.com/browse/penis), which means "tail."

And the average flaccid penis [3.61 inches](http://onlinelibrary.wiley.com/doi/10.1111/bju.13010/epdf).

You can't really make your penis bigger — not even with a penile extender, which just stretches the flaccid length. But you can make it SEEM bigger, especially if you aren't currently reaching your full potential for some reason (like you have vascular problems due to smoking or high blood pressure). If you're not getting fully erect, pills like Viagra might make your erection longer and stronger, and losing some belly fat can make it APPEAR bigger (but it won’t actually BE bigger). More on all that [here.](http://www.buzzfeed.com/caseygueren/heres-how-to-actually-make-your-penis-bigger)

"Psychogenic erection is a result of audiovisual stimuli or fantasy. ... Reflexogenic erection is produced by tactile stimuli to the genital organs. ... Nocturnal erection occurs mostly during rapid-eye-movement (REM) [sleep.](http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1351051/)"

The human penis does not actually have a bone, but rather is made up of three expandable blood reservoirs that fill up when a man gets an [erection.](http://emedicine.medscape.com/article/1949325-overview)

Since there is no bone in the penis, it is only possible to fracture it, not break it. Trauma to the penis, such as overextending or bending it, can cause a tear in the part of the penis called the tunica albuginea. More on that [here.](http://www.buzzfeed.com/caseygueren/how-to-not-break-your-penis) Ouch.

A recent study in the _Journal of Sexual Medicine_ showed that men who received oral sex before self-measuring had bigger penises because they were more erect, not necessarily because their penises got bigger. These men were asked to self-report their erections and how they got [them.](http://onlinelibrary.wiley.com/doi/10.1111/jsm.12244/abstract) These results are only correlational.

Penile foreskin has been used as a full-thickness skin graft for [syndactyly repair.](http://www.jpedsurg.org/article/S0022-3468(97)90569-8/abstract?cc=y)

Researchers looked at MRI images of a male and female having sex in the missionary position and discovered that the penis' root (inside the body) along with the actual erect penis will take on a [boomerang shape.](http://www.ncbi.nlm.nih.gov/pmc/articles/PMC28302/)

A 2007 study showed that nicotine "significantly reduced erectile responses" to erotic films shown to participants, which "[corresponded] to a [23% reduction](http://homepage.psy.utexas.edu/HomePage/Group/MestonLAB/Publications/nic_males_epub_2007.pdf) in physiological sexual arousal."

A 2007 report from the World Health Organization and the Joint United Nations Programme on HIV/AIDS reported that [30% of men aged 15 and older](http://www.unaids.org/sites/default/files/media_asset/jc1360_male_circumcision_en_0.pdf) are in fact circumcised.

Experimenters at Chicago’s Smell and Taste Treatment Research Foundation found that the smell of doughnuts ["increased the median penile-blood flow 31.5%."](http://aanos.org/human-male-sexual-response-to-olfactory-stimuli/)

Jonah Falcon is the proud owner of his [13.5 inch](http://live.huffingtonpost.com/r/segment/man-with-the-worlds-largest-penis-live/53619a5502a7601fb1000586) member. He plans to eventually donate his penis to the Icelandic Phallological Museum.

TBH you don't know dick about dicks. There aren't enough hours in the day to be focusing on some meat appendage, but at least you've got some new facts to gloat about!

Proudly Flaccid

You know just enough to carry on a casual convo about the latest hot penile gossip, but there's a lot left to learn. On the bright side, you just picked up on a whole new batch of facts that you could recite back to all your friends and family!

Boner Savant

For you, 1D is not just a boy band. You've got your mind on the D a lot of the time and it's finally paying off! You make it a point to throw out fun dick facts at any family gathering and you're loved for it.

Phallic Minded

Put this on your resumé ASAP and call your mother. You've clearly been putting a lot of hard work into researching dicks, and for that, you should be very proud. Your knowledge has the ability to penetrate any conversation in such a way that inspires others. You are a truly gifted individual.

Penile Professional

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How Much Do You Know About Dicks?

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