An acronym: Bare Back Ass To Mouth.

Slang mainly in prostitution circles and used to describe what a particular call girl will do. In this case Anal sex without the use of a condom followed immediatly by oral sex.

Mercury retrograde is the act of taking a shit whilst mooning one or more human beings. Your day can typically being going well, according to your horoscope, until you are forced into witnessing Mercury retrograde. Performing Mercury retrograde will often speed the astrological cycle forward for the individual performing the Mercury retrograde, bringing about happy and fruitful times to come.