The "Devil's Highway" refers to a girl's butthole. Most guys only get anal sex when their girl had about 50 drinks. I mean, she is
so fucked up, it's like
the devil has taken control of her. We all know the devil does some
dirty shit. See example.
So when you're banging your girl in the ass, your taking a "
Ride down Devil's Highway." For
those guys fortunate enough to have a girl who actually likes anal, marry those women!