Smacking her fore-head
On the dash 'til it's accidentally blowin’
The Benz Jeep horn
He continues trying to put her in the car, but he accidentally smacks her head on the steering wheel, making the horn go off. Drawing attention when trying to dispose of a dead body is generally not a good thing. The “Benz Jeep” is a Mercedes Benz G-Class because it is shaped like a Jeep.
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