(automotive) A frame built in or around the driver and passenger compartment of a vehicle to protect its occupants from being injured in an accident, particularly if the vehicle rolls over.

Alternative spelling of rollercoaster

plural of roller-coaster

(kayaking) The act of turning one's kayak from an upright position, laterally 360 degrees (going underwater and coming back up) while still moving forward.

(zoology) Describing a leaf roller.

Alternative spelling of leaf roller

A caterpillar of any tortrix moth (Tortricidae family), a pest that infests plants and rolls up their leaves.

(slang) A Rolls-Royce car

(intransitive) To make a rolling motion or turn. / (transitive) To cause a rolling motion or turn. / (intransitive or transitive, usually followed by to) To give in to.

Used to call the attention of potential purchasers.