Winken and Blinken are two little eyes...so if one of them is dead, they can be a pirate.

Being a pirate is all fun and games 'til somebody loses an eye
It hurts like the blazes; it makes you make faces
You can't let your mates see you cry.
A dashing black patch will cover the hatch and make sure the socket stays dry.
Being a pirate is all fun and games 'til somebody loses an eye.