Actually there is a way to crash, I have vast experience at this unfortunately.
I have had many crashes literally hundreds at speeds up to and over 130 mph.
I raced Grand National Flat track for 7 years and pretty much tossed a bike at every track on the circuit over that time. Just part of going fast is falling off. Most of the faster tracks We rode (1/2 mile and miles) saw very high speeds with very little run off, if any actually. The thing that was hardest to wrap my mind around was the fact I would reach the line of hay bales we spread around the outside of the turns at these horse tracks, or sprint car venues. You see the track builder would stand these bales on end with the theory that if you get into them you hit them low, they flip over you and you dissipate the energy of the impact by converting the forward lateral energy into vertical energy. The fly in the ointment is hitting this 150-pound stationary bale at 130 mph fucking hurts.
This is where technique comes to play. If I find myself in a pre-crash scenario. Knowing I will be on the ground in the next split second I release the bike and get my arms as close to my chest and kick my legs straight out trying to get6 as flat and stiff as possible. The concept is that I will slide and not tumble. It works. If you go fetal, pulling your knees towards your chest, you become a rounder shape with a higher center of gravity and stand a much higher chance of rolling, then bouncing and then you will lose control of your arms and legs and that is when the shit starts breaking or torn out of socket or dislocated.
Also by going flat I am making the largest contact patch as possible to help decelerate my projectile like body. Flat on my back at 120 mph at Laguna Seca earlier this year I was able to slide to a stop in less then 150 feet with nothing more then a few holes punched through my Dainese's My bike went another 200 feet cart-wheeling its way to oblivion.
The worse thing you can do if you are in a crash is throw out your hands to break your fall. This will more times then not, instantly break a collarbone as well as shatter wrist, break fingers, dislocate elbows etc. If you are heading towards the ground try to impact on the hardened corners of your gear, shoulders are best with elbows, hips and back being acceptable impact points.
In a crash sliding is a good thing bouncing is bad.
All my experience is track related I have very little advice in biffing on the street. In most cases street crashes are just gonna fuck you up.
I am too scared to even think about it