German Shower Curtain
A device, exactly like a condom, but with sack protection. It is used for sexual intercourse with really dirty bitches that will give you the HIV by looking at them, yet busting a nut at the moment overrides any rational thought.
Friend 1-"Hey man, do you have a german shower curtain? I'm gonna be banging your mom later."
Friend 2-"Godspeed my friend."
Friend 2-"Godspeed my friend."