I think it called leaping. Here is the full rule best I could find it for college football. This is for punts and field goals. If the player is within 1 yard of the line of scrimmage they can hurdle and gaps are fair game, atleast that's my understanding. Also he hurdled, hit the ground and jumped again to block the kick, he didn't use a TN player as an advantage to block the kick.
No defensive player, in an attempt to gain an advantage, may step, jump or stand on an opponent.
It is a foul if a defensive player moves forward and tries to block a field goal or try by leaving his feet and leaping into the plane directly above the frame of the body of an opponent.
It is not a foul if the player was aligned in a stationary position within one yard of the line of scrimmage when the ball was snapped.
It is a foul if a defensive player who is inside the tackle box tries to block a punt by leaving his feet and leaping into the plane directly above the frame of the body of an opponent.
It is not a foul if the player tries to block the punt by jumping straight up without attempting to leap over the opponent.
It is not a foul if a player leaps through or over the gap between players.
No defensive player, in an attempt to block, bat or catch a kick, may: 1. Step, jump or stand on a teammate. 2. Place a hand(s) on a teammate to get leverage for additional height. 3. Be picked up by a teammate, or be elevated, propelled or pushed.
PENALTY [a-d]—15 yards, previous spot and automatic first down. [S38