A flea flicker is an unorthodox play, often called a "trick play", in American football which is designed to fool the defensive team into thinking that a play is a run instead of a pass. It can be considered an extreme variant of the play action pass and an extension of the halfback option play.
After the snap the quarterback hands off or laterals the football to a running back or another player on his team, who then runs towards or parallel to the line of scrimmage. Before the running back crosses the line of scrimmage, he laterals the football back to the quarterback, who looks to pass to an eligible receiver.
The play is designed to draw defensive players into defending against the run, and away from defending the pass, leaving the quarterback free from any immediate pass rush, and leaving receivers potentially open to catch a pass as their covering defenders may have moved off the pass looking to tackle a ball carrier.
The flea flicker is an extremely high-risk play and it often results in a big gain, a turnover, or a big loss. One problem is that it takes a significant amount of time for the play to develop. During that time, the defense might get past the offensive line to tackle the running back before he can make the pitch to the quarterback, or sack the quarterback before he can throw the ball. There is also the risk that the running back could fumble if he is hit as he pitches the ball. Given these risks, the play is rarely used.
Illinois coach Bob Zuppke is credited with the play's invention.
Flea flicker plays have been used in some key National Football League games, including the Super Bowl, leading to dramatic results: