What does Bashful Turtle mean?

Bashful Turtle meaning in Urban Dictionary

When, whether considering overly-restrictive garments, uncomfortably low temperatures, or even the using stimulants, a guy's cock retreats virtually entirely into his human body. In acute cases it's possible even for an uncircumcised male's member to completely vanish from view, leaving just the exterior skin of his penis bunched up like neck skin of a turtle hiding its head with its layer.