Khyber Pass(redirected from a Khyber Pass)
slang The buttocks. The term comes from rhyming slang in which "Khyber Pass" rhymes with "ass" or "arse." (The Khyber Pass is a narrow mountain pass on the border between Afghanistan and Pakistan.) Primarily heard in UK. It's icy out there, so take it slow, or you'll end up on your Khyber Pass!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.