roloff sign

Condition that occurs in men where the scrotum turns a dusky blue or blackish color that is an accurate prognosticator of impending death. This is not to be confused with "blue balls" occurring with sexual frustration. Roloff sign happens after trauma, heart attack, drug overdose, etc. in which the guy is near death (most often seen in a hospital setting). Despite extraordinary measures, roloff sign indicates a poor outcome is likely.

"I can't believe Joe is still alive after that bad car accident."

"Dude, he ain't gonna make it...he's got the roloff sign."
"Damn, that's right, if the balls are blue...you know he's through"