*Originally a custom*

You lay down on the bed and pour lots of oil inside your belly button, you then take your finger and rub over your navel with pressure (slow or fast) to make the hottest and loudest popping sounds from the wet suction. After a couple minutes you notice your navel begins to dry up. You apply more oil and resume rubbing and fingering and the popping and squelching sounds are louder which make you feel extra good (moaning optional).