Along with the pages and pages and tomes and tomes of legal rules BarBri throws at us every day they also tend to give us lists of acronyms to use as mnemonics to memorize all these different nuances. For the most part I don't bother - most of them are a little forced ("COAH"?), and usually they're just something else to memorize. Plus it's generally easier to remember things contextually.
I have decided, however, that "bar" is nothing more than an acronym for "Big, Annoying Regurgitation."
Somehow it made me feel better to realize that.