When in a state of anxiety or after having been struck in the genitals, the penis tends to retract into the body. The name is derived from the turtle's defense mechanism.
Also applies to the bodily response after having goneswimming
I just went for a swim, and I got a meancase of turtledick (or turtlecock, tortoise-shlong)
The inverted crawl of the male genitalia much like when a Turtle hides his head in his shell. This happens when you spot a woman that once was hot enough that you would have had sexual relations. Now she is such a fright with an additional 40lbs and an extra set of breasts on her back. Just the thought of her makes your penis crawl back into your groin.
Oh my God did you see her? She is such a mess, Just thinking about her gives me TurtleDick. What Happened to her?
To attack someone with so many instant messages that their computer is in danger of shutting down. Typically done by making numerous new screennames and messaging someone from all of them at approximately the same time.
James wouldn't stop being dumb, so me and my buddy turtleminated him. He'll think twice before he gets online and bullshits us.