[theDentist]

A blast shield larger than any government building driveway Khomeini-flipper rises

Khomeini flipper?

[American Quilter]

Khomeini flipper?

This refers to the heavy steel wall that rises out of the road at a 90-degree angle just past the entry point on many military bases, to prevent unauthorized vehicles from making it onto the base. If you blow past the gate guard, he hits a button to bring up the barrier. You wouldn't want to hit it!