- Informal one right after another; consecutive
- facing in opposite directions, with the backs touching
Origin of back-to-backfrom use in stud poker to describe a pair dealt consecutively, one face down and the next face up
Consecutive; successive: back-to-back performances; back-to-back home runs.
- With one's back facing that of somebody else.
- Stand back-to-back so that we can see which of you is taller.