What does butt blocking refer to?

Butt blocking specifically refers to the offensive technique where a player uses their helmet to make contact against an opponent who is not carrying the ball, commonly aiming for the hip or thigh area. This form of blocking is focused on using the player's helmet to create an impact, which can be effective in certain situations during the game.

In the context of football rules, this type of action is scrutinized because targeting an opponent's head or using the helmet in blocking situations must adhere to safety regulations established by the NFHS to prevent injuries. Therefore, the focus on initiating contact with the helmet against a non-runner is central to understanding the mechanics and regulations surrounding butt blocking.

The other choices describe different actions that, while related to blocking or tackling, do not align with the specific definition and application of butt blocking within football rules.