what is a whoop?

 

whoops are normally in a series and are small to medium sized mounds of earth 3' to 4' high and spaced several feet apart sometimes evenly spaced and sometimes not.
The object in riding or racing is not to just ride over them and then hit the next one from level ground, but to manage to hit the tops of them,or or at least most of them, thereby getting thru them in the fastest time and with the maximum control of one's machine. Smaller bumps similar to whoops are sometimes called rhythym sections. Whoops is a contraction of the older term, "whoop-te- dos" which I guess dates me