1. Going down on a teacher to pass a class if one is in danger of failing; 2. to avoid having to do a particularly difficult or time-consuming assignment or project or; 3. to eliminate having to do any work outside of class and only needing to put forth a minimal, "for show" effort while in the classroom.

Quite different from grade rape, the goal of the B bob is to avoid attracting unwanted attention from parents, peers or administrators who might raise an eyebrow at an unexpected and uncharacteristic grade increase. With that in mind, the teacher in question is not asked or expected to give the student an "A" for services rendered, but instead a nice, safe, not-at-all suspicious "B" should appear on the report card.

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