Smash

The concept

A hitch at five yards under a corner route at twelve, both to the same side and in the same throwing window.

The offense1 / 3
The look
A hitch at five yards with a corner route climbing over the top of it from inside. Two receivers, one high and one low, in the same throwing lane.
vs Man2 / 3
The conflict
No conflict at all. The corner sits on the hitch, the safety runs the corner route, and smash becomes two separate one-on-ones.
vs Man3 / 3
The throw
The deepest of the two defenders. If he stays, take the hitch; if he leaves, the corner is behind him.

Why it works

One defender, two places, twelve yards apart
He can play the hitch in front of him or carry the corner over him. Both is not an option available to him, and the quarterback gets to watch him choose.
It beats the two coverages you will see most
Against a two-deep look the corner sinks and the hitch is free. Against three-deep he widens and the corner route is behind him. One call covers both answers.
The throw is decided at the break, not after it
Read the deep defender opening his hips. You know which of the two is yours before either receiver has finished running.

Running the hitch too deep
At eight yards the hitch is inside the defender drop rather than in front of it, and the high-low collapses into one covered area.
Throwing the corner flat
It has to be thrown with air, over the top, toward the sideline. A flat corner route is the easiest interception on this page.
Calling it against man
Nobody is in conflict against man — it is two separate one-on-ones on the same side. Smash is a zone call and it is worth checking out of.

The written breakdowns, by format. The diagram above is the same at every team size — these are the pages that say how it is actually run at each.

Open it in the designer, change the routes, save it to your playbook.