back-to-back
🇺🇸
/ˌbæk tə ˈbæk/
🇬🇧
/ˌbæk tə ˈbæk/
occurring one after the other without interruption
The team had to play two back-to-back games, which was quite challenging.
houses that share walls with the houses next to them
They lived in a row of back-to-back houses, where each house was attached to the next one.