Satan's Alley

Colloquial reference to the anal cavity, especially in context with male homosexual intercourse. So named because many evangelicals feel that "homosex is sin." Popularized in the movie "Tropic Thunder"

Marty: I'm about to take a stroll down Satan's Alley with my butt buddy.
Phil: That's pretty gay.

by Jeff Gar-thee-uh October 27, 2008