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!