Back to back Definition 1 of 3Pro Tip 1/3Non-stop Action Used to express continuous activity without rest, often leading to intensity. The festival featured bands playing back to back all day. Pro Tip 2/3Increased Challenge Implies a challenging situation due to the lack of breaks between tasks or events. She had back to back exams and was quite stressed. Pro Tip 3/3Planning Context Often used in scheduling or planning to indicate tight sequences. Our meetings are back to back tomorrow; there's no room for delay.