A Slant route is a pattern

Route (football)

A route is a path or pattern that a receiver in American football runs to get open for a forward pass.-List of common routes:*Curl route*Drag route, also called an "In route"*Corner route, also called a "Flag route"...

 run by a receiver

Wide receiver

A wide receiver is an offensive position in American and Canadian football, and is the key player in most of the passing plays. Only players in the backfield or the ends on the line are eligible to catch a forward pass. The two players who begin play at the ends of the offensive line are eligible...

 in American football

American football

American football is a sport played between two teams of eleven with the objective of scoring points by advancing the ball into the opposing team's end zone. Known in the United States simply as football, it may also be referred to informally as gridiron football. The ball can be advanced by...

, where the receiver runs up the field at approximately a 45-degree angle, heading to the gap between the linebacker

Linebacker

A linebacker is a position in American football that was invented by football coach Fielding H. Yost of the University of Michigan. Linebackers are members of the defensive team, and line up approximately three to five yards behind the line of scrimmage, behind the defensive linemen...

s and the linemen. Usually, the pass is used when the corner

Cornerback

A cornerback is a member of the defensive backfield or secondary in American and Canadian football. Cornerbacks cover receivers, to defend against pass offenses and make tackles. Other members of the defensive backfield include the safeties and occasionally linebackers. The cornerback position...

 or nickelback are playing further away from the receiver, so a quick pass is able to be completed before the defender has time to try to break up the pass. The pass is used frequently in the West Coast system

West Coast offense

In American football, "West Coast Offense" refers to two similar but distinct offensive-strategic-systems of play: the "Air Coryell" system; or more commonly the pass play system popularized by Bill Walsh...

, where quick, accurate throwing is key. This route is most commonly used to exploit the Cover 2 defense. Usually throwing in the seam between the safety and the cornerback is the key to getting a completion using this route.