An alphabetism, the letters literally stand for "quick bowl before." The speaker may then add on a final letter representing the affair for which a quick pre-game bowl is required. In the event that the affair is another b word (as in breakfast or banquet), the final b is often dropped for aesthetic purposes.
Used as code in down low situations, when not wishing to alert less-conspicuous others to the potential chief session.
Often a proposition.
Never actually happens.
K-Dogg: Hey where's Fodel?
Manny: I don't know.. qbb?