I was on a Delta CRJ about a year ago ATL - MGM.

Full throttle down the runway, just as our rear wheels left the ground, we slammed back down making contact with the runway. We kept our speed and then pulled up to take off.

Guess we didn't have the speed we needed on the first try?

Up, slammed back down, up and away is basically how it felt.

Half the cabin screamed. The crew acted like everything was normal.

It was jarring to say the least.