thrombulate 

to jiggle a juicy bum by placing palm just beneath lower cheek (subject is lying down on front), and rhythmically creating a massaging wave of juiciness that spreads up through glute muscles & into sacrum area. Claimed by those who have that booty thiccness to be intensely therapeutic and pleasurable.

"that waterfall hike was beautiful, but i definitely needs hubs to give about 2 hours of thrombulates when we get home."

thrombulate by ollijar April 16, 2022

Throbulation 

A bass tone so low (usually in the infrasonic range) or a bass so loud usually lower than 50hz which causes the ear to vibrate in such a way that causes dizzyness.

The bass is throbulating my ears, turn it down!
The audio system's bass is producing too much throbulation.

Throbulation by Bassotronics January 2, 2011