The cat leap for a kong is a more literal translation of the original french term "saut de chat" and the cat leap is called "saut de bras" which means "jump of the arms" or arm jump.
Also the english names were made by kerbie and the sayins back when the sayins were with uff.
They came up with them by watching videos, sort of like what Frosti did, but they spread to a wider audience due to uff's populartiy.