One in adoration or in direct subjugation of the cock. Lover and tickler of the cock, the cockswain is subservient to the penis like a young sailor bound to a ship. Or one with the mental toughness to command a vessel. Used specifically in instances of sheer idiocy or submission.
Tybalt- "Drake, you are enthralled by that man's rod, i dare say you are a cockswain."
by Themistocles January 17, 2007