Captain Scott Has Left his Sleeping Bag 

A phrase used to describe the state of the penis.

When an uncircumcised penis head rolls out of the foreskin.

Derived from the explorer, Robert Falcon Scott who ventured to Antarctica in 1912.

Ryan: Aw red alert mate
Josh: What?
Ryan: Captain Scott has left his sleeping bag

Captain Scott Has Left his Sleeping Bag by JohnJoeTheGood May 13, 2019