back to back
adverb
(of two similar events) following one immediately after the other; in unbroken sequence; consecutively: After losing all day, he picked winners back to back in the last two races.
adjective Also back-to-back.
adjacent or contiguous but oppositely oriented; having the backs close together or adjoining: The seats in the day coach are back to back.
Stud Poker.
(of a pair) consisting of the hole card and the first upcard: He had aces back to back.
Words nearby back to back
Idioms and Phrases with back to back
back to back
With backs close together or touching, as in In the first and second rows of the bus, the seats were back to back, an unusual arrangement. This term also can be applied to persons who stand facing in opposite directions and with their backs touching. [Mid-1800s]
Consecutively, one after another, as in I'm exhausted; I had three meetings back to back. [Mid-1900s]