You’re probably thinking, “What the heck is Zoomvroom talking about now?” Well folks, Zoomvroom is talking about a popular racing manuever. ‘Lay on the iron’ can be roughly translated as an act during a race, where a driver will cut inside another car’s lane, thus forcing the other car to swerve away to an outside lane. This has the byproduct of reducing the speed of the aforementioned car considerably. Check this out in the Steve McQueen movie, Le Mans.
Note: Never, ever try this on a public road.
The Unmuffled Auto News 
Perhaps this move could be tried during rush hour? What a great way to clear the road…
Hey, you just stole MY line!
Wow, I am quite familiar with that move, except my Dad called it “changing lanes” when he did it!
Cynthia
Yeah, but your dad wasn’t exactly Dale Earnhardt, was he?