The placement of one's face, specifically the mouth, into the area between an extremely well-endowed woman's breasts, followed by a rapid shaking of the face in a side-to-side motion accompanied by yelling. The resulting sound that is created sounds similar to an oil tank caught on a reef.

Not to be confused with motorboating which is for smaller breasts.

When you eat dirt for the first time and leave your family to build a shack in the woods