Double post because I have something relevant.
So today, I was in calculus and we were taking derivatives of geometric equations. If anyone knows about derivatives in relation to speed and physics, it goes like this:
No derivative = speed
yI = velocity
yII = acceleration
yIII = jerk
Interestingly enough, we were doing derivatives on the increasing radius of a circle. As I got to thinking, if we had taken the third derivative of the circle, we could potentially call it a "Circlejerk". It's not that funny when I explain it in words...