Definition of barrel roll
1 : an airplane maneuver in which a complete revolution about the longitudinal axis is made
2 : a usually accidental occurrence in which a vehicle rolls completely over along its longitudinal axis <If the accident is violent enough to cause a couple of barrel rolls, the car will do so, despite the flaps. — Connie Steele>
barrel–rollverb, transitive + intransitive <He once flipped a car at 225 miles per hour and barrel-rolled another at 307 mph. — Preston Lerner>
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