Old Man Hang

1)Noun- A sexually inappropriate comment made by a man over the age of forty that leaves younger people in a group speechless due to seniority and awkwardness
2) Noun-Literal unexplained length of a male member over the age of 40 years. The sexual counterpart to old man strength.

"Did you hear Dad talk about the difference between women's briefs and spandex during the track meet? That was a total Old Man Hang!"
"Did you the size of that old man's junk in the locker room? That can only be explained by old man hang."