A slang with origins from the midwest that is similar to a tongue fuck. The tongue is repeatedly jabbed (bobbed) in a partner's
asshole. The act is used after sex to clean out the
asshole of "doo" (a runny mix of semen and fecal matter). A good boberdoo
job creates suction, slurping noises and the fast bobbing of the head of the person performing the act. The word is best said with good midwestern accent.