How do we call the drumming skill of using two bass drums, or use a double bass pedal?

The technique of tapping the surface of a drum which results in a large bass sound is achieved by using a Bass Pedal.

The technique of using a Double Bass pedal, which is a bass pedaling device with 2 pedals and 2 beaters, Or using 2 double bass drums to make rapid bass drum sound is called "double kick"