The phrase "a long penis" is correct and usable in written English.
It can be used in contexts discussing anatomy, sexual health, or humor, among others.
Example: "In some cultures, a long penis is often associated with masculinity and virility."
Alternatives: "an elongated penis" or "a lengthy penis".
Males have a long penis and baculum (penis bone), which is somewhat similar to those of P. endoi, P. abramus and P. paterculus.
Many traits of Cape ground squirrels suggest intense sperm competition is important in male mating success, including a large scrotum (20% of head-body length), a long penis (>40% head-body length), repeated matings, and high operational sex ratios (11∶1 males:female) during the short 3-h oestrus [24], [25].
It is not obvious why a wide penis would be preferred to a long penis, but speculation would suggest the following.
Straight Man, Hell's Kitchen: If one goes by the Greek norm--Greek statues are far from well hung--it was a disproportionately long penis... Straight Woman, Bel Air, California: At that play, I just sat there with my mouth wide open, and I was mesmerized by it.
The male fossa has an unusually long penis and baculum (penis bone), reaching to between his forelegs when erect, with an average thickness of 20 mm.
Males have a long, straight penis with a notch between the shaft and the narrow, egg-shaped glans penis.
Male daddy longlegs have a long protrusible penis.
"A long, thin penis", he repeats, ever so slightly perturbed by the brusqueness of the enquiry.
It depicts a rather comical stick figure with an avian beak or mask, a puny physique, and a long skinny penis.
While the Venus of Willendorf is indubitably history's first thirst trap, the male sex organ has been an objet d'art since the dawn of time: the cave art at Lascaux depicted "a rather comical stick figure with an avian beak or mask, a puny physique, and a long skinny penis," and, millennia later, men are still making art about their dicks!
I know this because I have spent a good part of the last decade wearing short dresses, drinking from long penis straws, and teasing the general public's fear of women in large groups.
