crackback
/ˈkrækˌbæk/
noun
- In American football, a type of block where an offensive player runs back toward the line of scrimmage to block a defensive player from the side or behind, often after the ball has been thrown.
- The referee threw a flag for an illegal crackback block during the play.
- Coaches teach players to avoid crackback blocks because they can cause injuries.
- The wide receiver made a dangerous crackback block on the linebacker.