eyewinker

Outdated usage; something foreign in your eye that makes you wink, like an eyelash or a dust mote.
Current usage; a penis. From - one-eyed trouser snake.

Guy 1: I just looked through that glory hole and saw a guy tugging on his eyewinker.
Guy 2: Did you offer to help?
Guy 1: Nah.
Guy 2: Missed opportunity dude.