Definition of back-to-back:
"Ruth and Gehrig hit back-to-back home runs."
°With one's back facing somebody else's back.
"Stand back-to-back so that we can see which of you is taller."
Definition of back-to-back:
"Ruth and Gehrig hit back-to-back home runs."
°With one's back facing somebody else's back.
"Stand back-to-back so that we can see which of you is taller."