What skill in volley ball would you use if the ball falls below your head?

Volley is what would be used below your head

Although I'm no pro at volleyball, I do know that the skills usually used when the ball drops under the head usually involve maneuvers (hence skills) called dives. Additionally another major one is the dig, which is a sort of emergency maneuver where you actually touch the ground in an attempt to keep the ball in play. 

Phallus or pelvis or scroutum

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