Cartwheel: Begins when lead foot initiates inverted rotation while inverted legs extend in a "Y" position. Skill is completed when trail foot contacts the cheering surface. Cartwheel must be performed parallel to and torso facing the judges in Round 2. Arm positioning is optional to the end of the skill.
Chair: A single base stunt (an exception to requiring a spotter) in which the flyer's bent leg is in the base's extended arm and the straight leg is in the base's bent arm.
Collapse: A landing of a stunt, jump or gymnastics/tumbling skill to the mat directly on the head, neck, shoulders, or bottom before any other body part lands.
Cradle Catch: The flyer is caught in a face up position with the catcher's hands/arms up and by placing one arm under the back and one arm under the thighs of the flyer.
Cupie: A flair with flyer held in a feet together standing upright position.