Found this on facebook, try reading the comment but still don't figure out what are those and why we'll die
For a J turn: get the car going in reverse at 30 MPH, take your feet off both pedals, and then quickly turn and hold the steering wheel all the way in one direction. This will spin the car around 180°.
Then put it in drive and floor it.
Alternative method that only works in a front wheel drive automatic.
Into R, jam your foot on the throttle, then simultaneously drop it into D and turn the wheel about a half turn. Tyres will smoke but it’s a reliable way of not spinning out when you turn going backwards at speed.
Hoping someone posts a manual version of this
You would slow to a stop put it reverse do the same thing turn the steering wheel hard, and when your halfway spun around put it into neutral, then once your car is going sorta straight put it into second maybe first and then floor it