How Do You Do A Quick Recovery After Falling Off A Track On Mario Kart Wii? I Know There Is A Cheat!?

I’m not talking about the small boost you get if you press (2) right when you land.
I see people do this when playing online all the time. What happens is that they fall off the track, but in under one second, they appear slightly above the track and keep driving like nothing happened.
NOW I KNOW IT ISN’T ALWAYS LAG!! How do I know this? Because I have pushed people off of Rainbow Road before, I watched them fall off…but almost instantaneously, they are ahead of me and have a boost. Where is the lag then?! I know there is a cheat, I know it, I have seen this happen too many times.
Also my husband ACCIDENTLY did it once while playing. He fell off, and got mad and did something with the Wii Wheel, and he was on the track and ahead of everyone like it never happened. We can’t figure out what he did to make it happen tho.
What is the big secret hush hush society about this cheat?
I am tired of playing with crappy racers that can only win by cheating. Where is the fun in that?
So fess up already! It should only be fair that if one can cheat, everyone should be able too. Otherwise learn to race like the rest of us did without cheating, you losers!!