i just went for a swim, and i got a mean case of turtledick (or turtlecock, tortoise-shlong)
when in a state of anxiety or after having been struck in the genitals, the penis tends to retract into the body
"i just went for a swim, and i got a mean case of turtledick (or turtlecock, tortoise-shlong)" What is the definition of "turtledick"?